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Interactions between Captopril / hydrochlorothiazide and Drospirenone

2 drug interactions and 46 additional warnings found for the following 2 drugs:

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Drug interactions

Moderate drug interactions

Moderate:

captopril hydroCHLOROthiazide

Applies to: captopril / hydrochlorothiazide and captopril / hydrochlorothiazide
Monitor

Although they are frequently combined in clinical practice, diuretics and angiotensin converting enzyme (ACE) inhibitors may have additive effects. Coadministration makes hypotension and hypovolemia more likely than does either drug alone. Some ACE inhibitors may attenuate the increase in the urinary excretion of sodium caused by some loop diuretics. Some patients on diuretics, especially those on dialysis or a dietary salt restriction, may experience acute hypotension with lightheadedness and dizziness after receiving the first dose of the ACE inhibitor. In addition, ACE inhibitors may cause renal insufficiency or acute renal failure in patients with sodium depletion or renal artery stenosis.

Management

Monitoring of blood pressure, diuresis, electrolytes, and renal function is recommended during coadministration. The possibility of first-dose hypotensive effects may be minimized by initiating therapy with small doses of the ACE inhibitor, or either discontinuing the diuretic temporarily or increasing the salt intake approximately one week prior to initiating an ACE inhibitor. Alternatively, the patient may remain under medical supervision for at least two hours after the first dose of the ACE inhibitor, or until blood pressure has stabilized.

References (23)
  1. Reader C, Peyregne EA, Suarez LD (1983) "Amrinone therapy in congestive cardiomyopathy." Am Heart J, 105, p. 1045
  2. Fujimura A, Shimokawa Y, Ebihara A (1990) "Influence of captopril on urinary excretion of furosemide in hypertensive subjects." J Clin Pharmacol, 30, p. 538-42
  3. Funck-Brentano C, Chatellier G, Alexandre JM (1986) "Reversible renal failure after combined treatment with enalapril and furosemide in a patient with congestive heart failure." Br Heart J, 55, p. 596-8
  4. Weisser K, Schloos J, Jakob S, et al. (1992) "The influence of hydrochlorothiazide on the pharmacokinetics of enalapril in elderly patients." Eur J Clin Pharmacol, 43, p. 173-7
  5. Motwani JG, Fenwick MK, Morton JJ, Struthers AD (1992) "Furosemide-induced natriuresis is augmented by ultra-low-dose captopril but not by standard doses of captopril in chronic heart failure." Circulation, 86, p. 439-45
  6. Burnakis TG, Mioduch HJ (1984) "Combined therapy with captopril and potassium supplementation: a potential for hyperkalemia." Arch Intern Med, 144, p. 2371-2
  7. Murphy BF, Whitworth JA, Kincaid-Smith P (1984) "Renal insufficiency with combinations of angiotensin converting enzyme inhibitors and diuretics." Br Med J, 288, p. 844-5
  8. Thind GS (1985) "Renal insufficiency during angiotensin-converting enzyme inhibitor therapy in hypertensive patients with no renal artery stenosis." J Clin Hypertens, 1, p. 337-43
  9. Radley AS, Fitzpatrick RW (1987) "An evaluation of the potential interaction between enalapril and amiloride." J Clin Pharm Ther, 12, p. 319-23
  10. Champ JD (1993) "Case report: azotemia secondary to enalapril and diuretic use and the diagnosis of renovascular hypertension." Am J Med Sci, 305, p. 25-7
  11. Hume AL, Murphy JL, Lauerman SE (1989) "Angiotensin-converting enzyme inhibitor-induced cough." Pharmacotherapy, 9, p. 88-90
  12. Lee HB, Blaufox MD (1992) "Renal functional response to captopril during diuretic therapy." J Nucl Med, 33, p. 739-43
  13. DeQuattro V (1991) "Comparison of benazepril and other antihypertensive agents alone and in combination with the diuretic hydrochlorothiazide." Clin Cardiol, 14, iv28-32;
  14. (2002) "Product Information. Vasotec (enalapril)." Merck & Co., Inc
  15. McLay JS, McMurray JJ, Bridges AB, Fraser CG, Struthers AD (1993) "Acute effects of captopril on the renal actions of furosemide in patients with chronic heart failure." Am Heart J, 126, p. 879-86
  16. Sudoh T, Fujimura A, Shiga T, et al. (1993) "Influence of lisinopril on urinary electrolytes excretion after furosemide in healthy subjects." J Clin Pharmacol, 33, p. 640-3
  17. Lederle RM (1985) "Captopril and hydrochlorothiazide in the fixed combination multicenter trial." J Cardiovasc Pharmacol, 7, S63-9
  18. (2001) "Product Information. Aceon (perindopril)." Solvay Pharmaceuticals Inc
  19. Good JM, Brady AJ, Noormohamed FH, Oakley CM, Cleland JG (1994) "Effect of intense angiotensin II suppression on the diuretic response to furosemide during chronic ACE inhibition." Circulation, 90, p. 220-4
  20. (2001) "Product Information. Capoten (captopril)." Bristol-Myers Squibb
  21. (2001) "Product Information. Lexxel (enalapril-felodipine)." Astra-Zeneca Pharmaceuticals
  22. "Product Information. Zestril (lisinopril)." Astra-Zeneca Pharmaceuticals
  23. Cerner Multum, Inc. "Australian Product Information."
Moderate:

captopril drospirenone

Applies to: captopril / hydrochlorothiazide and drospirenone
Monitor

The use of drospirenone may potentiate the risk of hyperkalemia in patients receiving chronic treatment with drugs that can increase serum potassium such as angiotensin converting enzyme (ACE) inhibitors, angiotensin II receptor antagonists, potassium-sparing diuretics, aldosterone antagonists, nonsteroidal anti-inflammatory drugs (NSAIDs), potassium preparations, and miscellaneous agents like cyclosporine, heparin, tacrolimus, and trimethoprim. Drospirenone has antimineralocorticoid activity and may induce hyperkalemia in susceptible patients.

Management

Serum potassium levels should be checked regularly during concomitant therapy with drospirenone and other agents that can increase serum potassium. Particular caution is warranted in patients with renal impairment, diabetes, old age, severe or worsening heart failure, or dehydration. Patients should be advised to seek medical attention if they experience signs and symptoms of hyperkalemia such as nausea, vomiting, weakness, listlessness, tingling of the extremities, paralysis, confusion, weak pulse, and a slow or irregular heartbeat.

References (2)
  1. Ponce SP, Jennings AE, Madias NE, Harrington JT (1985) "Drug-induced hyperkalemia." Medicine (Baltimore), 64, p. 357-70
  2. (2001) "Product Information. Yasmin (drospirenone-ethinyl estradiol)." Berlex Laboratories

Food/lifestyle interactions

Moderate food/lifestyle interactions

Moderate:

captopril Food/Lifestyle

Applies to: captopril / hydrochlorothiazide
Generally avoid

Moderate-to-high dietary intake of potassium can cause hyperkalemia in some patients who are using angiotensin converting enzyme (ACE) inhibitors. In some cases, affected patients were using a potassium-rich salt substitute. ACE inhibitors can promote hyperkalemia through inhibition of the renin-aldosterone-angiotensin (RAA) system.

Management

It is recommended that patients who are taking ACE inhibitors be advised to avoid moderately high or high potassium dietary intake. Particular attention should be paid to the potassium content of salt substitutes.

References (3)
  1. (2002) "Product Information. Vasotec (enalapril)." Merck & Co., Inc
  2. Good CB, McDermott L (1995) "Diet and serum potassium in patients on ACE inhibitors." JAMA, 274, p. 538
  3. Ray K, Dorman S, Watson R (1999) "Severe hyperkalaemia due to the concomitant use of salt substitutes and ACE inhibitors in hypertension: a potentially life threatening interaction." J Hum Hypertens, 13, p. 717-20
Moderate:

drospirenone Food/Lifestyle

Applies to: drospirenone
Monitor

Grapefruit or grapefruit juice may increase the plasma concentrations of orally administered drugs that are substrates of the CYP450 3A4 isoenzyme. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruit. Because grapefruit juice inhibits primarily intestinal rather than hepatic CYP450 3A4, the magnitude of interaction is greatest for those drugs that undergo significant presystemic metabolism by CYP450 3A4 (i.e., drugs with low oral bioavailability). In general, the effect of grapefruit juice is concentration-, dose- and preparation-dependent, and can vary widely among brands. Certain preparations of grapefruit juice (e.g., high dose, double strength) have sometimes demonstrated potent inhibition of CYP450 3A4, while other preparations (e.g., low dose, single strength) have typically demonstrated moderate inhibition. Pharmacokinetic interactions involving grapefruit juice are also subject to a high degree of interpatient variability, thus the extent to which a given patient may be affected is difficult to predict.

Management

Patients who regularly consume grapefruit or grapefruit juice should be monitored for adverse effects and altered plasma concentrations of drugs that undergo significant presystemic metabolism by CYP450 3A4. Grapefruit and grapefruit juice should be avoided if an interaction is suspected. Orange juice is not expected to interact with these drugs.

References (32)
  1. Edgar B, Bailey D, Bergstrand R, et al. (1992) "Acute effects of drinking grapefruit juice on the pharmacokinetics and dynamics on felodipine and its potential clinical relevance." Eur J Clin Pharmacol, 42, p. 313-7
  2. Jonkman JH, Sollie FA, Sauter R, Steinijans VW (1991) "The influence of caffeine on the steady-state pharmacokinetics of theophylline." Clin Pharmacol Ther, 49, p. 248-55
  3. Bailey DG, Arnold JM, Munoz C, Spence JD (1993) "Grapefruit juice--felodipine interaction: mechanism, predictability, and effect of naringin." Clin Pharmacol Ther, 53, p. 637-42
  4. Bailey DG, Arnold JMO, Spence JD (1994) "Grapefruit juice and drugs - how significant is the interaction." Clin Pharmacokinet, 26, p. 91-8
  5. Sigusch H, Hippius M, Henschel L, Kaufmann K, Hoffmann A (1994) "Influence of grapefruit juice on the pharmacokinetics of a slow release nifedipine formulation." Pharmazie, 49, p. 522-4
  6. Bailey DG, Arnold JM, Strong HA, Munoz C, Spence JD (1993) "Effect of grapefruit juice and naringin on nisoldipine pharmacokinetics." Clin Pharmacol Ther, 54, p. 589-94
  7. Yamreudeewong W, Henann NE, Fazio A, Lower DL, Cassidy TG (1995) "Drug-food interactions in clinical practice." J Fam Pract, 40, p. 376-84
  8. (1995) "Grapefruit juice interactions with drugs." Med Lett Drugs Ther, 37, p. 73-4
  9. Hukkinen SK, Varhe A, Olkkola KT, Neuvonen PJ (1995) "Plasma concentrations of triazolam are increased by concomitant ingestion of grapefruit juice." Clin Pharmacol Ther, 58, p. 127-31
  10. Min DI, Ku YM, Geraets DR, Lee HC (1996) "Effect of grapefruit juice on the pharmacokinetics and pharmacodynamics of quinidine in healthy volunteers." J Clin Pharmacol, 36, p. 469-76
  11. Majeed A, Kareem A (1996) "Effect of grapefruit juice on cyclosporine pharmacokinetics." Pediatr Nephrol, 10, p. 395
  12. Clifford CP, Adams DA, Murray S, Taylor GW, Wilkins MR, Boobis AR, Davies DS (1996) "Pharmacokinetic and cardiac effects of terfenadine after inhibition of its metabolism by grapefruit juice." Br J Clin Pharmacol, 42, p662
  13. Josefsson M, Zackrisson AL, Ahlner J (1996) "Effect of grapefruit juice on the pharmacokinetics of amlodipine in healthy volunteers." Eur J Clin Pharmacol, 51, p. 189-93
  14. Kantola T, Kivisto KT, Neuvonen PJ (1998) "Grapefruit juice greatly increases serum concentrations of lovastatin and lovastatin acid." Clin Pharmacol Ther, 63, p. 397-402
  15. Ozdemir M, Aktan Y, Boydag BS, Cingi MI, Musmul A (1998) "Interaction between grapefruit juice and diazepam in humans." Eur J Drug Metab Pharmacokinet, 23, p. 55-9
  16. Bailey DG, Malcolm J, Arnold O, Spence JD (1998) "Grapefruit juice-drug interactions." Br J Clin Pharmacol, 46, p. 101-10
  17. Bailey DG, Kreeft JH, Munoz C, Freeman DJ, Bend JR (1998) "Grapefruit juice felodipine interaction: Effect of naringin and 6',7'-dihydroxybergamottin in humans." Clin Pharmacol Ther, 64, p. 248-56
  18. Garg SK, Kumar N, Bhargava VK, Prabhakar SK (1998) "Effect of grapefruit juice on carbamazepine bioavailability in patients with epilepsy." Clin Pharmacol Ther, 64, p. 286-8
  19. Lilja JJ, Kivisto KT, Neuvonen PJ (1998) "Grapefruit juice-simvastatin interaction: Effect on serum concentrations of simvastatin, simvastatin acid, and HMG-CoA reductase inhibitors." Clin Pharmacol Ther, 64, p. 477-83
  20. Fuhr U, Maier-Bruggemann A, Blume H, et al. (1998) "Grapefruit juice increases oral nimodipine bioavailability." Int J Clin Pharmacol Ther, 36, p. 126-32
  21. Lilja JJ, Kivisto KT, Neuvonen PJ (1999) "Grapefruit juice increases serum concentrations of atorvastatin and has no effect on pravastatin." Clin Pharmacol Ther, 66, p. 118-27
  22. Eagling VA, Profit L, Back DJ (1999) "Inhibition of the CYP3A4-mediated metabolism and P-glycoprotein-mediated transport of the HIV-I protease inhibitor saquinavir by grapefruit juice components." Br J Clin Pharmacol, 48, p. 543-52
  23. Damkier P, Hansen LL, Brosen K (1999) "Effect of diclofenac, disulfiram, itraconazole, grapefruit juice and erythromycin on the pharmacokinetics of quinidine." Br J Clin Pharmacol, 48, p. 829-38
  24. Lee AJ, Chan WK, Harralson AF, Buffum J, Bui BCC (1999) "The effects of grapefruit juice on sertraline metabolism: An in vitro and in vivo study." Clin Ther, 21, p. 1890-9
  25. Dresser GK, Spence JD, Bailey DG (2000) "Pharmacokinetic-pharmacodynamic consequences and clinical relevance of cytochrome P450 3A4 inhibition." Clin Pharmacokinet, 38, p. 41-57
  26. Gunston GD, Mehta U (2000) "Potentially serious drug interactions with grapefruit juice." S Afr Med J, 90, p. 41
  27. Takanaga H, Ohnishi A, Maatsuo H, et al. (2000) "Pharmacokinetic analysis of felodipine-grapefruit juice interaction based on an irreversible enzyme inhibition model." Br J Clin Pharmacol, 49, p. 49-58
  28. Libersa CC, Brique SA, Motte KB, et al. (2000) "Dramatic inhibition of amiodarone metabolism induced by grapefruit juice." Br J Clin Pharmacol, 49, p. 373-8
  29. Bailey DG, Dresser GR, Kreeft JH, Munoz C, Freeman DJ, Bend JR (2000) "Grapefruit-felodipine interaction: Effect of unprocessed fruit and probable active ingredients." Clin Pharmacol Ther, 68, p. 468-77
  30. Zaidenstein R, Soback S, Gips M, Avni B, Dishi V, Weissgarten Y, Golik A, Scapa E (2001) "Effect of grapefruit juice on the pharmacokinetics of losartan and its active metabolite E3174 in healthy volunteers." Ther Drug Monit, 23, p. 369-73
  31. Sato J, Nakata H, Owada E, Kikuta T, Umetsu M, Ito K (1993) "Influence of usual intake of dietary caffeine on single-dose kinetics of theophylline in healthy human subjects." Eur J Clin Pharmacol, 44, p. 295-8
  32. Flanagan D (2005) "Understanding the grapefruit-drug interaction." Gen Dent, 53, 282-5; quiz 286
Moderate:

captopril Alcohol (Ethanol)

Applies to: captopril / hydrochlorothiazide
Monitor

Certain psychotherapeutic and other CNS-active agents may have blood pressure-lowering effects and may cause dizziness, orthostatic hypotension, or syncope. These effects may be more likely during treatment initiation, dose escalation, or treatment restart. Coadministration with antihypertensives or other agents with blood pressure-lowering properties, particularly vasodilators and alpha-adrenergic blockers, may result in additive hypotensive or orthostatic effects.

Management

Monitor blood pressure and clinical response during concomitant use, especially when starting or increasing the dose of either agent. Patients should be advised to rise slowly from a sitting or lying position and to report dizziness, lightheadedness, fainting, orthostasis, palpitations, or troublesome changes in pulse or heart rate. Patients should be cautioned that alcohol may enhance blood pressure-lowering effects during concomitant use with antihypertensives or other agents with hypotensive properties. Patients should avoid driving or operating hazardous machinery until they know how the medications affect them.

References (13)
  1. Sternbach H (1991) "Fluoxetine-associated potentiation of calcium-channel blockers." J Clin Psychopharmacol, 11, p. 390-1
  2. Shook TL, Kirshenbaum JM, Hundley RF, Shorey JM, Lamas GA (1984) "Ethanol intoxication complicating intravenous nitroglycerin therapy." Ann Intern Med, 101, p. 498-9
  3. Feder R (1991) "Bradycardia and syncope induced by fluoxetine." J Clin Psychiatry, 52, p. 139
  4. Ellison JM, Milofsky JE, Ely E (1990) "Fluoxetine-induced bradycardia and syncope in two patients." J Clin Psychiatry, 51, p. 385-6
  5. Rodriguez de la Torre B, Dreher J, Malevany I, et al. (2001) "Serum levels and cardiovascular effects of tricyclic antidepressants and selective serotonin reuptake inhibitors in depressed patients." Ther Drug Monit, 23, p. 435-40
  6. Pacher P, Kecskemeti V (2004) "Cardiovascular side effects of new antidepressants and antipsychotics: new drugs, old concerns?" Curr Pharm Des, 10, p. 2463-75
  7. Andrews C, Pinner G (1998) "Postural hypotension induced by paroxetine." BMJ, 316, p. 595
  8. (2023) "Product Information. Buprenorphine (buprenorphine)." G.L. Pharma UK Ltd
  9. (2023) "Product Information. Temgesic (buprenorphine)." Reckitt Benckiser Pty Ltd
  10. (2026) "Product Information. Urapidil (Carinopharm) (urapidil)." Imported (EU)
  11. (2020) "Product Information. URAPIDIL ACCORD (urapidil)." ACCORD HEALTHCARE LIMITED
  12. (2020) "Product Information. Ebrantil (urapidil)." CHEPLAPHARM ARZNEIMITTEL GMBH
  13. (2026) "Product Information. Urapidil (urapidil)." Imported (Switzerland)
Moderate:

hydroCHLOROthiazide Alcohol (Ethanol)

Applies to: captopril / hydrochlorothiazide
Monitor

Certain psychotherapeutic and other CNS-active agents may have blood pressure-lowering effects and may cause dizziness, orthostatic hypotension, or syncope. These effects may be more likely during treatment initiation, dose escalation, or treatment restart. Coadministration with antihypertensives or other agents with blood pressure-lowering properties, particularly vasodilators and alpha-adrenergic blockers, may result in additive hypotensive or orthostatic effects.

Management

Monitor blood pressure and clinical response during concomitant use, especially when starting or increasing the dose of either agent. Patients should be advised to rise slowly from a sitting or lying position and to report dizziness, lightheadedness, fainting, orthostasis, palpitations, or troublesome changes in pulse or heart rate. Patients should be cautioned that alcohol may enhance blood pressure-lowering effects during concomitant use with antihypertensives or other agents with hypotensive properties. Patients should avoid driving or operating hazardous machinery until they know how the medications affect them.

References (13)
  1. Sternbach H (1991) "Fluoxetine-associated potentiation of calcium-channel blockers." J Clin Psychopharmacol, 11, p. 390-1
  2. Shook TL, Kirshenbaum JM, Hundley RF, Shorey JM, Lamas GA (1984) "Ethanol intoxication complicating intravenous nitroglycerin therapy." Ann Intern Med, 101, p. 498-9
  3. Feder R (1991) "Bradycardia and syncope induced by fluoxetine." J Clin Psychiatry, 52, p. 139
  4. Ellison JM, Milofsky JE, Ely E (1990) "Fluoxetine-induced bradycardia and syncope in two patients." J Clin Psychiatry, 51, p. 385-6
  5. Rodriguez de la Torre B, Dreher J, Malevany I, et al. (2001) "Serum levels and cardiovascular effects of tricyclic antidepressants and selective serotonin reuptake inhibitors in depressed patients." Ther Drug Monit, 23, p. 435-40
  6. Pacher P, Kecskemeti V (2004) "Cardiovascular side effects of new antidepressants and antipsychotics: new drugs, old concerns?" Curr Pharm Des, 10, p. 2463-75
  7. Andrews C, Pinner G (1998) "Postural hypotension induced by paroxetine." BMJ, 316, p. 595
  8. (2023) "Product Information. Buprenorphine (buprenorphine)." G.L. Pharma UK Ltd
  9. (2023) "Product Information. Temgesic (buprenorphine)." Reckitt Benckiser Pty Ltd
  10. (2026) "Product Information. Urapidil (Carinopharm) (urapidil)." Imported (EU)
  11. (2020) "Product Information. URAPIDIL ACCORD (urapidil)." ACCORD HEALTHCARE LIMITED
  12. (2020) "Product Information. Ebrantil (urapidil)." CHEPLAPHARM ARZNEIMITTEL GMBH
  13. (2026) "Product Information. Urapidil (urapidil)." Imported (Switzerland)

Disease interactions

42 potential interactions Applies to: 29 conditions, including High Cholesterol, Asthma, Gout, Diarrhea, and Hypokalemia.

Abnormal Glucose Tolerance

Moderate:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a moderate potential interaction with Abnormal Glucose Tolerance.

Thiazide diuretics may cause hyperglycemia and glycosuria in patients with diabetes. They may also precipitate diabetes in prediabetic patients. These effects are usually reversible following discontinuation of the drugs. Therapy with thiazide diuretics should be administered cautiously in patients with diabetes mellitus, glucose intolerance, or a predisposition to hyperglycemia. Patients with diabetes mellitus should be monitored more closely during thiazide therapy, and their antidiabetic regimen adjusted accordingly.

Adrenal Insufficiency

Major:

drospirenone

Drospirenone has a major potential interaction with Adrenal Insufficiency.

The progestin drospirenone (DRSP) has antialdosterone activity, including the potential for hyperkalemia in high-risk patients. The use of DRSP-containing combination hormone is contraindicated in patients with conditions that predispose to hyperkalemia (renal impairment, hepatic impairment, and adrenal insufficiency). Use caution when prescribing these agents to women who regularly take other medications that can increase potassium, such as nonsteroidal anti-inflammatory drugs (NSAIDs), potassium-sparing diuretics, potassium supplements, angiotensin converting enzyme (ACE) inhibitors, angiotensin-II receptor antagonists, heparin and aldosterone antagonists. It is recommended to monitor serum potassium concentrations during the first month of dosing in high-risk patients who take strong CYP3A4 inhibitors long-term and concomitantly.

Angioedema

Major:

captopril / hydrochlorothiazide

The captopril in captopril / hydrochlorothiazide has a major potential interaction with Angioedema.

The use of these agents is contraindicated in patients with hereditary angioedema or a history of idiopathic angioedema. Patients with a history of angioedema unrelated to ACE inhibitors may be at increased risk of angioedema while receiving an ACE inhibitor. Patients should be advised to immediately report any signs or symptoms suggestive of angioedema (swelling of face, extremities, eyes, lips, or tongue, or difficulty swallowing or breathing) and to stop taking the medication until otherwise directed by their physician. Emergency therapy and/or measures to prevent airway obstruction are required for angioedema involving the tongue, glottis, or larynx. Treatment with ACE inhibitors should be discontinued permanently if angioedema develops in association with therapy.

Anuria

Major:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a major potential interaction with Anuria.

The use of thiazide diuretics is contraindicated in patients with anuria.

Asthma

Moderate:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a moderate potential interaction with Asthma.

Thiazide diuretics should be used with caution in patients with history of bronchial asthma as sensitivity reactions may occur.

Bone Marrow Depression/Low Blood Counts

Major:

captopril / hydrochlorothiazide

The captopril in captopril / hydrochlorothiazide has a major potential interaction with Bone Marrow Depression/Low Blood Counts.

ACE inhibitors may cause bone marrow suppression, rarely in uncomplicated individuals but more frequently in patients with renal impairment, especially if they also have a collagen-vascular disease such as systemic lupus erythematosus or scleroderma. Neutropenia, agranulocytosis, aplastic anemia, hemolytic anemia, eosinophilia and thrombocytopenia have been reported, mostly with captopril. Therapy with ACE inhibitors should be administered cautiously in patients with preexisting blood dyscrasias or complications that may increase the risk of bone marrow depression during ACE inhibitor therapy. Monitoring of blood counts, particularly white blood cells, should be considered.

Cerebrovascular Insufficiency

Major:

captopril / hydrochlorothiazide

The captopril in captopril / hydrochlorothiazide has a major potential interaction with Cerebrovascular Insufficiency.

ACE inhibitors can cause symptomatic hypotension, most often during the initiation of therapy and in patients who are volume- and/or sodium-depleted or treated for congestive heart failure (CHF). Therapy with ACE inhibitors should be administered cautiously in such patients and in those predisposed to hypovolemic or hyponatremic states (e.g., patients on diuretic therapy, especially if it was recently instituted; those on dietary salt restriction; those with severe or prolonged diarrhea or vomiting; and renal dialysis patients). Volume and/or sodium depletion should be corrected prior to initiating therapy with ACE inhibitors, and the patient should be hemodynamically stable. If concomitant diuretics and/or dietary sodium restriction are employed, reducing or temporarily withholding the dosing of diuretics and/or liberalizing dietary sodium intake for 2 to 3 days in advance can help minimize the risk of severe hypotension in patients who are able to tolerate such adjustments. ACE inhibitors should also be used cautiously in patients in whom excessive hypotension may have serious consequences, such as patients with coronary or cerebrovascular insufficiency. Patients at risk for excessive hypotension should initiate ACE inhibitor therapy under very close medical supervision, and followed closely for the first 2 weeks of treatment and whenever the dosage of ACE inhibitor or diuretic is increased.

Collagen Vascular Disease

Major:

captopril / hydrochlorothiazide

The captopril in captopril / hydrochlorothiazide has a major potential interaction with Collagen Vascular Disease.

ACE inhibitors may cause bone marrow suppression, rarely in uncomplicated individuals but more frequently in patients with renal impairment, especially if they also have a collagen-vascular disease such as systemic lupus erythematosus or scleroderma. Neutropenia, agranulocytosis, aplastic anemia, hemolytic anemia, eosinophilia and thrombocytopenia have been reported, mostly with captopril. Therapy with ACE inhibitors should be administered cautiously in patients with preexisting blood dyscrasias or complications that may increase the risk of bone marrow depression during ACE inhibitor therapy. Monitoring of blood counts, particularly white blood cells, should be considered.

Dehydration

Major:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a major potential interaction with Dehydration.

The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.

Major:

captopril / hydrochlorothiazide

The captopril in captopril / hydrochlorothiazide has a major potential interaction with Dehydration.

ACE inhibitors can cause symptomatic hypotension, most often during the initiation of therapy and in patients who are volume- and/or sodium-depleted or treated for congestive heart failure (CHF). Therapy with ACE inhibitors should be administered cautiously in such patients and in those predisposed to hypovolemic or hyponatremic states (e.g., patients on diuretic therapy, especially if it was recently instituted; those on dietary salt restriction; those with severe or prolonged diarrhea or vomiting; and renal dialysis patients). Volume and/or sodium depletion should be corrected prior to initiating therapy with ACE inhibitors, and the patient should be hemodynamically stable. If concomitant diuretics and/or dietary sodium restriction are employed, reducing or temporarily withholding the dosing of diuretics and/or liberalizing dietary sodium intake for 2 to 3 days in advance can help minimize the risk of severe hypotension in patients who are able to tolerate such adjustments. ACE inhibitors should also be used cautiously in patients in whom excessive hypotension may have serious consequences, such as patients with coronary or cerebrovascular insufficiency. Patients at risk for excessive hypotension should initiate ACE inhibitor therapy under very close medical supervision, and followed closely for the first 2 weeks of treatment and whenever the dosage of ACE inhibitor or diuretic is increased.

Diabetes Mellitus

Major:

captopril / hydrochlorothiazide

The captopril in captopril / hydrochlorothiazide has a major potential interaction with Diabetes Mellitus.

In patients with hyperkalemia, especially those associated with impaired renal function or congestive heart failure, ACE inhibitors may further raise serum potassium levels. Therapy with ACE inhibitors should be administered cautiously in patients with or predisposed to hyperkalemia, and serum potassium levels should be carefully monitored. Risk factors for the development of hyperkalemia during ACE inhibitor therapy include renal insufficiency, diabetes mellitus, and the concomitant use of potassium-sparing diuretics, potassium supplements, and/or potassium-containing salt substitutes.

Moderate:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a moderate potential interaction with Diabetes Mellitus.

Thiazide diuretics may cause hyperglycemia and glycosuria in patients with diabetes. They may also precipitate diabetes in prediabetic patients. These effects are usually reversible following discontinuation of the drugs. Therapy with thiazide diuretics should be administered cautiously in patients with diabetes mellitus, glucose intolerance, or a predisposition to hyperglycemia. Patients with diabetes mellitus should be monitored more closely during thiazide therapy, and their antidiabetic regimen adjusted accordingly.

Diarrhea

Major:

captopril / hydrochlorothiazide

The captopril in captopril / hydrochlorothiazide has a major potential interaction with Diarrhea.

ACE inhibitors can cause symptomatic hypotension, most often during the initiation of therapy and in patients who are volume- and/or sodium-depleted or treated for congestive heart failure (CHF). Therapy with ACE inhibitors should be administered cautiously in such patients and in those predisposed to hypovolemic or hyponatremic states (e.g., patients on diuretic therapy, especially if it was recently instituted; those on dietary salt restriction; those with severe or prolonged diarrhea or vomiting; and renal dialysis patients). Volume and/or sodium depletion should be corrected prior to initiating therapy with ACE inhibitors, and the patient should be hemodynamically stable. If concomitant diuretics and/or dietary sodium restriction are employed, reducing or temporarily withholding the dosing of diuretics and/or liberalizing dietary sodium intake for 2 to 3 days in advance can help minimize the risk of severe hypotension in patients who are able to tolerate such adjustments. ACE inhibitors should also be used cautiously in patients in whom excessive hypotension may have serious consequences, such as patients with coronary or cerebrovascular insufficiency. Patients at risk for excessive hypotension should initiate ACE inhibitor therapy under very close medical supervision, and followed closely for the first 2 weeks of treatment and whenever the dosage of ACE inhibitor or diuretic is increased.

Major:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a major potential interaction with Diarrhea.

The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.

Electrolyte Abnormalities

Major:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a major potential interaction with Electrolyte Abnormalities.

The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.

Gout

Moderate:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a moderate potential interaction with Gout.

Thiazide diuretics decrease the rate of uric acid excretion. Hyperuricemia occurs frequently but is usually asymptomatic and rarely leads to clinical gout except in patients with a history of gout or chronic renal failure. Therapy with thiazide diuretics should be administered cautiously in such patients.

Hemodialysis

Major:

captopril / hydrochlorothiazide

The captopril in captopril / hydrochlorothiazide has a major potential interaction with Hemodialysis.

Anaphylactoid reactions have been reported in patients undergoing hemodialysis with high-flux polyacrylonitrile membranes and treated concomitantly with an ACE inhibitor. The frequency and mechanism of this interaction have not been established, and it is not known whether the interaction occurs with other membrane types. Therapy with ACE inhibitors should be administered cautiously in patients requiring hemodialysis.

Major:

captopril / hydrochlorothiazide

The captopril in captopril / hydrochlorothiazide has a major potential interaction with Hemodialysis.

ACE inhibitors can cause symptomatic hypotension, most often during the initiation of therapy and in patients who are volume- and/or sodium-depleted or treated for congestive heart failure (CHF). Therapy with ACE inhibitors should be administered cautiously in such patients and in those predisposed to hypovolemic or hyponatremic states (e.g., patients on diuretic therapy, especially if it was recently instituted; those on dietary salt restriction; those with severe or prolonged diarrhea or vomiting; and renal dialysis patients). Volume and/or sodium depletion should be corrected prior to initiating therapy with ACE inhibitors, and the patient should be hemodynamically stable. If concomitant diuretics and/or dietary sodium restriction are employed, reducing or temporarily withholding the dosing of diuretics and/or liberalizing dietary sodium intake for 2 to 3 days in advance can help minimize the risk of severe hypotension in patients who are able to tolerate such adjustments. ACE inhibitors should also be used cautiously in patients in whom excessive hypotension may have serious consequences, such as patients with coronary or cerebrovascular insufficiency. Patients at risk for excessive hypotension should initiate ACE inhibitor therapy under very close medical supervision, and followed closely for the first 2 weeks of treatment and whenever the dosage of ACE inhibitor or diuretic is increased.

High Cholesterol

Moderate:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a moderate potential interaction with High Cholesterol.

Thiazide diuretics may increase serum triglyceride and cholesterol levels, primarily LDL and VLDL. Whether these effects are dose-related and sustained during chronic therapy are unknown. Patients with preexisting hyperlipidemia may require closer monitoring during thiazide therapy, and adjustments made accordingly in their lipid-lowering regimen

Hyperaldosteronism

Major:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a major potential interaction with Hyperaldosteronism.

The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.

Hyperkalemia

Major:

captopril / hydrochlorothiazide

The captopril in captopril / hydrochlorothiazide has a major potential interaction with Hyperkalemia.

In patients with hyperkalemia, especially those associated with impaired renal function or congestive heart failure, ACE inhibitors may further raise serum potassium levels. Therapy with ACE inhibitors should be administered cautiously in patients with or predisposed to hyperkalemia, and serum potassium levels should be carefully monitored. Risk factors for the development of hyperkalemia during ACE inhibitor therapy include renal insufficiency, diabetes mellitus, and the concomitant use of potassium-sparing diuretics, potassium supplements, and/or potassium-containing salt substitutes.

Major:

drospirenone

Drospirenone has a major potential interaction with Hyperkalemia.

The progestin drospirenone (DRSP) has antialdosterone activity, including the potential for hyperkalemia in high-risk patients. The use of DRSP-containing combination hormone is contraindicated in patients with conditions that predispose to hyperkalemia (renal impairment, hepatic impairment, and adrenal insufficiency). Use caution when prescribing these agents to women who regularly take other medications that can increase potassium, such as nonsteroidal anti-inflammatory drugs (NSAIDs), potassium-sparing diuretics, potassium supplements, angiotensin converting enzyme (ACE) inhibitors, angiotensin-II receptor antagonists, heparin and aldosterone antagonists. It is recommended to monitor serum potassium concentrations during the first month of dosing in high-risk patients who take strong CYP3A4 inhibitors long-term and concomitantly.

Hyperparathyroidism

Moderate:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a moderate potential interaction with Hyperparathyroidism.

Urinary calcium excretion is decreased by thiazide diuretics during chronic administration. Pathologic changes in the parathyroid gland with hypercalcemia and hypophosphatemia have been reported during prolonged therapy. However, the common complications of hyperparathyroidism such as renal lithiasis, bone resorption, and peptic ulceration have not been seen. Clinicians should be cognizant of these effects when prescribing or administering thiazide therapy to patients with hyperparathyroidism. These drugs should be discontinued before carrying out tests for parathyroid function.

Hypokalemia

Major:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a major potential interaction with Hypokalemia.

The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.

Hyponatremia

Major:

captopril / hydrochlorothiazide

The captopril in captopril / hydrochlorothiazide has a major potential interaction with Hyponatremia.

ACE inhibitors can cause symptomatic hypotension, most often during the initiation of therapy and in patients who are volume- and/or sodium-depleted or treated for congestive heart failure (CHF). Therapy with ACE inhibitors should be administered cautiously in such patients and in those predisposed to hypovolemic or hyponatremic states (e.g., patients on diuretic therapy, especially if it was recently instituted; those on dietary salt restriction; those with severe or prolonged diarrhea or vomiting; and renal dialysis patients). Volume and/or sodium depletion should be corrected prior to initiating therapy with ACE inhibitors, and the patient should be hemodynamically stable. If concomitant diuretics and/or dietary sodium restriction are employed, reducing or temporarily withholding the dosing of diuretics and/or liberalizing dietary sodium intake for 2 to 3 days in advance can help minimize the risk of severe hypotension in patients who are able to tolerate such adjustments. ACE inhibitors should also be used cautiously in patients in whom excessive hypotension may have serious consequences, such as patients with coronary or cerebrovascular insufficiency. Patients at risk for excessive hypotension should initiate ACE inhibitor therapy under very close medical supervision, and followed closely for the first 2 weeks of treatment and whenever the dosage of ACE inhibitor or diuretic is increased.

Major:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a major potential interaction with Hyponatremia.

The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.

Ischemic Heart Disease

Major:

captopril / hydrochlorothiazide

The captopril in captopril / hydrochlorothiazide has a major potential interaction with Ischemic Heart Disease.

ACE inhibitors can cause symptomatic hypotension, most often during the initiation of therapy and in patients who are volume- and/or sodium-depleted or treated for congestive heart failure (CHF). Therapy with ACE inhibitors should be administered cautiously in such patients and in those predisposed to hypovolemic or hyponatremic states (e.g., patients on diuretic therapy, especially if it was recently instituted; those on dietary salt restriction; those with severe or prolonged diarrhea or vomiting; and renal dialysis patients). Volume and/or sodium depletion should be corrected prior to initiating therapy with ACE inhibitors, and the patient should be hemodynamically stable. If concomitant diuretics and/or dietary sodium restriction are employed, reducing or temporarily withholding the dosing of diuretics and/or liberalizing dietary sodium intake for 2 to 3 days in advance can help minimize the risk of severe hypotension in patients who are able to tolerate such adjustments. ACE inhibitors should also be used cautiously in patients in whom excessive hypotension may have serious consequences, such as patients with coronary or cerebrovascular insufficiency. Patients at risk for excessive hypotension should initiate ACE inhibitor therapy under very close medical supervision, and followed closely for the first 2 weeks of treatment and whenever the dosage of ACE inhibitor or diuretic is increased.

Liver Disease

Major:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a major potential interaction with Liver Disease.

Patients with severe liver disease or cirrhosis are very susceptible to thiazide-induced hypokalemic hypochloremic alkalosis. Blood ammonia concentrations may be further increased in patients with previously elevated concentrations. Hepatic encephalopathy and death have occurred secondary to the electrolyte alterations accompanying diuretic use. Therapy with thiazide diuretics should be administered cautiously in patients with impaired hepatic function or progressive liver disease, and discontinued promptly if signs of impending hepatic coma appear (e.g., tremors, confusion, and increased jaundice).

Major:

drospirenone

Drospirenone has a major potential interaction with Liver Disease.

The progestin drospirenone (DRSP) has antialdosterone activity, including the potential for hyperkalemia in high-risk patients. The use of DRSP-containing combination hormone is contraindicated in patients with conditions that predispose to hyperkalemia (renal impairment, hepatic impairment, and adrenal insufficiency). Use caution when prescribing these agents to women who regularly take other medications that can increase potassium, such as nonsteroidal anti-inflammatory drugs (NSAIDs), potassium-sparing diuretics, potassium supplements, angiotensin converting enzyme (ACE) inhibitors, angiotensin-II receptor antagonists, heparin and aldosterone antagonists. It is recommended to monitor serum potassium concentrations during the first month of dosing in high-risk patients who take strong CYP3A4 inhibitors long-term and concomitantly.

Moderate:

captopril / hydrochlorothiazide

The captopril in captopril / hydrochlorothiazide has a moderate potential interaction with Liver Disease.

Rarely, elevations of liver enzymes and/or serum bilirubin have occurred with the use of ACE inhibitors. Patients receiving ACE inhibitors who develop jaundice or marked elevations of hepatic enzymes should discontinue the ACE inhibitor and receive appropriate medical follow-up.

Lupus Erythematosus

Major:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a major potential interaction with Lupus Erythematosus.

The use of thiazide diuretics has been reported to possibly exacerbate or activate systemic lupus erythematosus. Reported cases have generally been associated with chlorothiazide and hydrochlorothiazide. Therapy with thiazide diuretics should be administered cautiously in patients with a history or risk of SLE.

Magnesium Imbalance

Major:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a major potential interaction with Magnesium Imbalance.

The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.

Malnourishment

Major:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a major potential interaction with Malnourishment.

The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.

Renal Dysfunction

Major:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a major potential interaction with Renal Dysfunction.

Thiazide diuretics may be ineffective when the glomerular filtration rate is low (GFR < 25 mL/min) because they are not expected to be filtered into the renal tubule, their site of action. In addition, thiazide diuretics decrease the GFR and may precipitate azotemia in renal disease. Cumulative effects may also develop because most of these drugs are excreted unchanged in the urine by glomerular filtration and active tubular secretion. Therapy with thiazide diuretics should be administered cautiously at reduced dosages in patients with renal impairment. If renal function becomes progressively worse, as indicated by rising BUN or serum creatinine levels, an interruption or discontinuation of thiazide therapy should be considered.

Major:

captopril / hydrochlorothiazide

The captopril in captopril / hydrochlorothiazide has a major potential interaction with Renal Dysfunction.

ACE inhibitors may cause bone marrow suppression, rarely in uncomplicated individuals but more frequently in patients with renal impairment, especially if they also have a collagen-vascular disease such as systemic lupus erythematosus or scleroderma. Neutropenia, agranulocytosis, aplastic anemia, hemolytic anemia, eosinophilia and thrombocytopenia have been reported, mostly with captopril. Therapy with ACE inhibitors should be administered cautiously in patients with preexisting blood dyscrasias or complications that may increase the risk of bone marrow depression during ACE inhibitor therapy. Monitoring of blood counts, particularly white blood cells, should be considered.

Major:

captopril / hydrochlorothiazide

The captopril in captopril / hydrochlorothiazide has a major potential interaction with Renal Dysfunction.

In patients with hyperkalemia, especially those associated with impaired renal function or congestive heart failure, ACE inhibitors may further raise serum potassium levels. Therapy with ACE inhibitors should be administered cautiously in patients with or predisposed to hyperkalemia, and serum potassium levels should be carefully monitored. Risk factors for the development of hyperkalemia during ACE inhibitor therapy include renal insufficiency, diabetes mellitus, and the concomitant use of potassium-sparing diuretics, potassium supplements, and/or potassium-containing salt substitutes.

Major:

drospirenone

Drospirenone has a major potential interaction with Renal Dysfunction.

The progestin drospirenone (DRSP) has antialdosterone activity, including the potential for hyperkalemia in high-risk patients. The use of DRSP-containing combination hormone is contraindicated in patients with conditions that predispose to hyperkalemia (renal impairment, hepatic impairment, and adrenal insufficiency). Use caution when prescribing these agents to women who regularly take other medications that can increase potassium, such as nonsteroidal anti-inflammatory drugs (NSAIDs), potassium-sparing diuretics, potassium supplements, angiotensin converting enzyme (ACE) inhibitors, angiotensin-II receptor antagonists, heparin and aldosterone antagonists. It is recommended to monitor serum potassium concentrations during the first month of dosing in high-risk patients who take strong CYP3A4 inhibitors long-term and concomitantly.

Moderate:

captopril / hydrochlorothiazide

The captopril in captopril / hydrochlorothiazide has a moderate potential interaction with Renal Dysfunction.

With the exception of fosinopril, ACE inhibitors (and/or their active metabolites in some cases) are primarily eliminated by the kidney and may accumulate in patients with renal impairment. ACE inhibitors can also worsen renal function in some patients by blocking the effect of angiotensin II-mediated efferent arteriolar vasoconstriction, thereby decreasing glomerular filtration. Therapy with ACE inhibitors should be administered cautiously in patients with preexisting renal dysfunction, particularly those with renovascular disease. Patients with moderate to severe renal impairment usually require lower or less frequent doses and smaller increments in dose. In addition, a dosage reduction or discontinuation of any concomitantly administered diuretics may be helpful. Fosinopril probably does not require dosage adjustments unless hepatic function is also significantly impaired.

In patients with bilateral renal artery stenosis or renal artery stenosis in a solitary kidney, ACE inhibitors may reduce renal perfusion to a critically low level. Renal function should be monitored closely for the first few weeks of therapy.

Thyroid Disease

Moderate:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a moderate potential interaction with Thyroid Disease.

Thiazide diuretics may decrease serum PBI (protein-bound iodine) levels without associated thyroid disturbance. Clinicians should be cognizant of this effect when prescribing or administering thiazide therapy to patients with thyroid disorders.

Ventricular Arrhythmia

Major:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a major potential interaction with Ventricular Arrhythmia.

The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.

Vomiting

Major:

captopril / hydrochlorothiazide

The captopril in captopril / hydrochlorothiazide has a major potential interaction with Vomiting.

ACE inhibitors can cause symptomatic hypotension, most often during the initiation of therapy and in patients who are volume- and/or sodium-depleted or treated for congestive heart failure (CHF). Therapy with ACE inhibitors should be administered cautiously in such patients and in those predisposed to hypovolemic or hyponatremic states (e.g., patients on diuretic therapy, especially if it was recently instituted; those on dietary salt restriction; those with severe or prolonged diarrhea or vomiting; and renal dialysis patients). Volume and/or sodium depletion should be corrected prior to initiating therapy with ACE inhibitors, and the patient should be hemodynamically stable. If concomitant diuretics and/or dietary sodium restriction are employed, reducing or temporarily withholding the dosing of diuretics and/or liberalizing dietary sodium intake for 2 to 3 days in advance can help minimize the risk of severe hypotension in patients who are able to tolerate such adjustments. ACE inhibitors should also be used cautiously in patients in whom excessive hypotension may have serious consequences, such as patients with coronary or cerebrovascular insufficiency. Patients at risk for excessive hypotension should initiate ACE inhibitor therapy under very close medical supervision, and followed closely for the first 2 weeks of treatment and whenever the dosage of ACE inhibitor or diuretic is increased.

Major:

captopril / hydrochlorothiazide

The hydroCHLOROthiazide in captopril / hydrochlorothiazide has a major potential interaction with Vomiting.

The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.

More resources

captopril / hydrochlorothiazide

A total of 659 drugs are known to interact with captopril / hydrochlorothiazide.

drospirenone

A total of 384 drugs are known to interact with drospirenone.

Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.