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Drug Interactions between hydrochlorothiazide / quinapril and nalidixic acid

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Moderate

nalidixic acid quinapril

Applies to: nalidixic acid and hydrochlorothiazide / quinapril

ADJUST DOSING INTERVAL: Administration of quinapril with some oral medications may significantly decrease their absorption and may result in subtherapeutic serum concentrations. The proposed mechanism is chelation of the drug by the magnesium hydroxide excipient in quinapril tablets.

MANAGEMENT: The manufacturer does not make a specific recommendation, but generally the administration of these drugs and magnesium-containing products should be separated by at least two to three hours.

References

  1. "Multum Information Services, Inc. Expert Review Panel"
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics."

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Moderate

hydroCHLOROthiazide quinapril

Applies to: hydrochlorothiazide / quinapril and hydrochlorothiazide / quinapril

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

  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."
View all 23 references

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Drug and food interactions

Moderate

quinapril food

Applies to: hydrochlorothiazide / quinapril

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

  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

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Moderate

hydroCHLOROthiazide food

Applies to: hydrochlorothiazide / quinapril

MONITOR: Many psychotherapeutic and CNS-active agents (e.g., anxiolytics, sedatives, hypnotics, antidepressants, antipsychotics, opioids, alcohol, muscle relaxants) exhibit hypotensive effects, especially during initiation of therapy and dose escalation. Coadministration with antihypertensives and other hypotensive agents, in particular vasodilators and alpha-blockers, may result in additive effects on blood pressure and orthostasis.

MANAGEMENT: Caution and close monitoring for development of hypotension is advised during coadministration of these agents. Some authorities recommend avoiding alcohol in patients receiving vasodilating antihypertensive drugs. Patients should be advised to avoid rising abruptly from a sitting or recumbent position and to notify their physician if they experience dizziness, lightheadedness, syncope, orthostasis, or tachycardia.

References

  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. Cerner Multum, Inc. "Australian Product Information."
  7. Pacher P, Kecskemeti V (2004) "Cardiovascular side effects of new antidepressants and antipsychotics: new drugs, old concerns?" Curr Pharm Des, 10, p. 2463-75
  8. Andrews C, Pinner G (1998) "Postural hypotension induced by paroxetine." BMJ, 316, p. 595
View all 8 references

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Moderate

quinapril food

Applies to: hydrochlorothiazide / quinapril

MONITOR: Many psychotherapeutic and CNS-active agents (e.g., anxiolytics, sedatives, hypnotics, antidepressants, antipsychotics, opioids, alcohol, muscle relaxants) exhibit hypotensive effects, especially during initiation of therapy and dose escalation. Coadministration with antihypertensives and other hypotensive agents, in particular vasodilators and alpha-blockers, may result in additive effects on blood pressure and orthostasis.

MANAGEMENT: Caution and close monitoring for development of hypotension is advised during coadministration of these agents. Some authorities recommend avoiding alcohol in patients receiving vasodilating antihypertensive drugs. Patients should be advised to avoid rising abruptly from a sitting or recumbent position and to notify their physician if they experience dizziness, lightheadedness, syncope, orthostasis, or tachycardia.

References

  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. Cerner Multum, Inc. "Australian Product Information."
  7. Pacher P, Kecskemeti V (2004) "Cardiovascular side effects of new antidepressants and antipsychotics: new drugs, old concerns?" Curr Pharm Des, 10, p. 2463-75
  8. Andrews C, Pinner G (1998) "Postural hypotension induced by paroxetine." BMJ, 316, p. 595
View all 8 references

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Moderate

nalidixic acid food

Applies to: nalidixic acid

ADJUST DOSING INTERVAL: Oral preparations that contain magnesium, aluminum, or calcium may significantly decrease the gastrointestinal absorption of nalidixic acid. Absorption may also be reduced by sucralfate, which contains aluminum, as well as other polyvalent cations such as iron and zinc. The mechanism is chelation of nalidixic acid by polyvalent cations, forming a complex that is poorly absorbed from the gastrointestinal tract.

MANAGEMENT: When coadministration cannot be avoided, nalidixic acid should be dosed at least 2 hours before or 2 hours after polyvalent cation-containing products to minimize the potential for interaction.

References

  1. "Product Information. Neggram (nalidixic acid)." Sanofi Winthrop Pharmaceuticals

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Moderate

nalidixic acid food

Applies to: nalidixic acid

MONITOR: Coadministration with certain quinolones may increase the plasma concentrations and pharmacologic effects of caffeine due to inhibition of the CYP450 1A2 metabolism of caffeine. Quinolones that may inhibit CYP450 1A2 include ciprofloxacin, enoxacin, grepafloxacin, nalidixic acid, norfloxacin, pipemidic acid, and pefloxacin (not all commercially available). In healthy volunteers, enoxacin (100 to 400 mg twice daily) increased systemic exposure (AUC) of caffeine by 2- to 5-fold and reduced its clearance by approximately 80%. Pipemidic acid (400 to 800 mg twice daily) increased AUC of caffeine by 2- to 3-fold and reduced its clearance by approximately 60%. Ciprofloxacin (250 to 750 mg twice daily) increased AUC and elimination half-life of caffeine by 50% to over 100%, and reduced its clearance by 30% to 50%. Norfloxacin 400 mg twice daily increased caffeine AUC by 16%, while 800 mg twice daily increased caffeine AUC by 52% and reduced its clearance by 35%. Pefloxacin (400 mg twice daily) has been shown to reduce caffeine clearance by 47%.

MANAGEMENT: Patients using caffeine-containing products should be advised that increased adverse effects such as headache, tremor, restlessness, nervousness, insomnia, tachycardia, and blood pressure increases may occur during coadministration with quinolones that inhibit CYP450 1A2. Caffeine intake should be limited when taking high dosages of these quinolones. If an interaction is suspected, other quinolones such as gatifloxacin, gemifloxacin, levofloxacin, lomefloxacin, moxifloxacin, and ofloxacin may be considered, since they are generally believed to have little or no effect on CYP450 1A2 or have been shown not to interact with caffeine.

References

  1. Polk RE (1989) "Drug-drug interactions with ciprofloxacin and other fluoroquinolones." Am J Med, 87, s76-81
  2. Healy DP, Polk RE, Kanawati L, Rock DT, Mooney ML (1989) "Interaction between oral ciprofloxacin and caffeine in normal volunteers." Antimicrob Agents Chemother, 33, p. 474-8
  3. Harder S, Fuhr U, Staib AH, Wolf T (1989) "Ciprofloxacin-caffeine: a drug interaction established using in vivo and in vitro investigations." Am J Med, 87, p. 89-91
  4. Carbo ML, Segura J, De la Torre R, et al. (1989) "Effect of quinolones on caffeine disposition." Clin Pharmacol Ther, 45, p. 234-40
  5. (1993) "Product Information. Penetrax (enoxacin)." Rhone-Poulenc Rorer, Collegeville, PA.
  6. Mahr G, Sorgel F, Granneman GR, et al. (1992) "Effects of temafloxacin and ciprofloxacin on the pharmacokinetics of caffeine." Clin Pharmacokinet, 22, p. 90-7
  7. (2002) "Product Information. Cipro (ciprofloxacin)." Bayer
  8. (2001) "Product Information. Noroxin (norfloxacin)." Merck & Co., Inc
  9. Staib AH, Stille W, Dietlein G, et al. (1987) "Interaction between quinolones and caffeine." Drugs, 34 Suppl 1, p. 170-4
  10. Stille W, Harder S, Micke S, et al. (1987) "Decrease of caffeine elimination in man during co-administration of 4-quinolones." J Antimicrob Chemother, 20, p. 729-34
  11. Harder S, Staib AH, Beer C, Papenburg A, Stille W, Shah PM (1988) "4-Quinolones inhibit biotransformation of caffeine." Eur J Clin Pharmacol, 35, p. 651-6
  12. Nicolau DP, Nightingale CH, Tessier PR, et al. (1995) "The effect of fleroxacin and ciprofloxacin on the pharmacokinetics of multiple dose caffeine." Drugs, 49 Suppl 2, p. 357-9
  13. (2001) "Product Information. Raxar (grepafloxacin)." Glaxo Wellcome
  14. Carrillo JA, Benitez J (2000) "Clinically significant pharmacokinetic interactions between dietary caffeine and medications." Clin Pharmacokinet, 39, p. 127-53
  15. Fuhr U, Wolff T, Harder S, Schymanski P, Staib AH (1990) "Quinolone inhibition of cytochrome P-450 dependent caffeine metabolism in human liver microsomes." Drug Metab Dispos, 18, p. 1005-10
  16. Kinzig-Schippers M, Fuhr U, Zaigler M, et al. (1999) "Interaction of pefloxacin and enoxacin with the human cytochrome P450 enzyme CYP1A2." Clin Pharmacol Ther, 65, p. 262-74
  17. Healy DP, Schoenle JR, Stotka J, Polk RE (1991) "Lack of interaction between lomefloxacin and caffeine in normal volunteers." Antimicrob Agents Chemother, 35, p. 660-4
View all 17 references

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Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

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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.

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