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Drug Interactions between Avalide and Tri-K

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

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Interactions between your drugs

Major

potassium citrate irbesartan

Applies to: Tri-K (potassium acetate / potassium bicarbonate / potassium citrate) and Avalide (hydrochlorothiazide / irbesartan)

MONITOR CLOSELY: Concomitant use of angiotensin II receptor blockers (ARBs) and potassium salts may increase the risk of hyperkalemia. Inhibition of angiotensin II results in decreased aldosterone secretion, which in turn causes potassium retention. Risk factors for developing severe or life-threatening hyperkalemia may include renal impairment, diabetes, old age, severe or worsening heart failure, dehydration, and concomitant use of other agents that block the renin-angiotensin-aldosterone system or otherwise increase serum potassium levels.

MANAGEMENT: Caution is advised if angiotensin II receptor blockers must be used concurrently with potassium salts, particularly in patients with renal impairment, diabetes, old age, severe or worsening heart failure, dehydration, or concomitant therapy with other agents that increase serum potassium such as nonsteroidal anti-inflammatory drugs, beta-blockers, cyclosporine, heparin, tacrolimus, and trimethoprim. The combination should generally be avoided in these patients unless absolutely necessary and the benefits outweigh the potential risks. Serum potassium and renal function should be checked prior to initiating therapy and regularly thereafter. Patients should be given counseling on the appropriate levels of potassium and fluid intake, and 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

  1. Walmsley RN, White GH, Cain M, McCarthy PJ, Booth J "Hyperkalemia in the elderly." Clin Chem 30 (1984): 1409-12
  2. Lawson DH, O'Connor PC, Jick H "Drug attributed alterations in potassium handling in congestive cardiac failure." Eur J Clin Pharmacol 23 (1982): 21-5
  3. Lawson DH "Adverse reactions to potassium chloride." Q J Med 43 (1974): 433-40
  4. "Product Information. Cozaar (losartan)." Merck & Co., Inc PROD (2001):
  5. "Product Information. Diovan (valsartan)." Novartis Pharmaceuticals PROD (2001):
  6. Obialo CI, Ofili EO, Mirza T "Hyperkalemia in congestive heart failure patients aged 63 to 85 years with subclinical renal disease." Am J Cardiol 90 (2002): 663-5
  7. Jarman PR, Mather HM "Diabetes may be independent risk factor for hyperkalaemia." BMJ 327 (2003): 812
  8. Perazella MA "Drug-induced hyperkalemia: old culprits and new offenders." Am J Med 109 (2000): 307-14
  9. Jarman PR, Kehely AM, Mather HM "Hyperkalaemia in diabetes: prevalence and associations." Postgrad Med J 71 (1995): 551-2
  10. Perazella MA, Mahnensmith RL "Hyperkalemia in the elderly: drugs exacerbate impaired potassium homeostasis." J Gen Intern Med 12 (1997): 646-56
  11. Large DM, Carr PH, Laing I, Davies M "Hyperkalaemia in diabetes mellitus--potential hazards of coexisting hyporeninaemic hypoaldosteronism." Postgrad Med J 60 (1984): 370-3
View all 11 references

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Major

potassium bicarbonate irbesartan

Applies to: Tri-K (potassium acetate / potassium bicarbonate / potassium citrate) and Avalide (hydrochlorothiazide / irbesartan)

MONITOR CLOSELY: Concomitant use of angiotensin II receptor blockers (ARBs) and potassium salts may increase the risk of hyperkalemia. Inhibition of angiotensin II results in decreased aldosterone secretion, which in turn causes potassium retention. Risk factors for developing severe or life-threatening hyperkalemia may include renal impairment, diabetes, old age, severe or worsening heart failure, dehydration, and concomitant use of other agents that block the renin-angiotensin-aldosterone system or otherwise increase serum potassium levels.

MANAGEMENT: Caution is advised if angiotensin II receptor blockers must be used concurrently with potassium salts, particularly in patients with renal impairment, diabetes, old age, severe or worsening heart failure, dehydration, or concomitant therapy with other agents that increase serum potassium such as nonsteroidal anti-inflammatory drugs, beta-blockers, cyclosporine, heparin, tacrolimus, and trimethoprim. The combination should generally be avoided in these patients unless absolutely necessary and the benefits outweigh the potential risks. Serum potassium and renal function should be checked prior to initiating therapy and regularly thereafter. Patients should be given counseling on the appropriate levels of potassium and fluid intake, and 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

  1. Walmsley RN, White GH, Cain M, McCarthy PJ, Booth J "Hyperkalemia in the elderly." Clin Chem 30 (1984): 1409-12
  2. Lawson DH, O'Connor PC, Jick H "Drug attributed alterations in potassium handling in congestive cardiac failure." Eur J Clin Pharmacol 23 (1982): 21-5
  3. Lawson DH "Adverse reactions to potassium chloride." Q J Med 43 (1974): 433-40
  4. "Product Information. Cozaar (losartan)." Merck & Co., Inc PROD (2001):
  5. "Product Information. Diovan (valsartan)." Novartis Pharmaceuticals PROD (2001):
  6. Obialo CI, Ofili EO, Mirza T "Hyperkalemia in congestive heart failure patients aged 63 to 85 years with subclinical renal disease." Am J Cardiol 90 (2002): 663-5
  7. Jarman PR, Mather HM "Diabetes may be independent risk factor for hyperkalaemia." BMJ 327 (2003): 812
  8. Perazella MA "Drug-induced hyperkalemia: old culprits and new offenders." Am J Med 109 (2000): 307-14
  9. Jarman PR, Kehely AM, Mather HM "Hyperkalaemia in diabetes: prevalence and associations." Postgrad Med J 71 (1995): 551-2
  10. Perazella MA, Mahnensmith RL "Hyperkalemia in the elderly: drugs exacerbate impaired potassium homeostasis." J Gen Intern Med 12 (1997): 646-56
  11. Large DM, Carr PH, Laing I, Davies M "Hyperkalaemia in diabetes mellitus--potential hazards of coexisting hyporeninaemic hypoaldosteronism." Postgrad Med J 60 (1984): 370-3
View all 11 references

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Major

potassium acetate irbesartan

Applies to: Tri-K (potassium acetate / potassium bicarbonate / potassium citrate) and Avalide (hydrochlorothiazide / irbesartan)

MONITOR CLOSELY: Concomitant use of angiotensin II receptor blockers (ARBs) and potassium salts may increase the risk of hyperkalemia. Inhibition of angiotensin II results in decreased aldosterone secretion, which in turn causes potassium retention. Risk factors for developing severe or life-threatening hyperkalemia may include renal impairment, diabetes, old age, severe or worsening heart failure, dehydration, and concomitant use of other agents that block the renin-angiotensin-aldosterone system or otherwise increase serum potassium levels.

MANAGEMENT: Caution is advised if angiotensin II receptor blockers must be used concurrently with potassium salts, particularly in patients with renal impairment, diabetes, old age, severe or worsening heart failure, dehydration, or concomitant therapy with other agents that increase serum potassium such as nonsteroidal anti-inflammatory drugs, beta-blockers, cyclosporine, heparin, tacrolimus, and trimethoprim. The combination should generally be avoided in these patients unless absolutely necessary and the benefits outweigh the potential risks. Serum potassium and renal function should be checked prior to initiating therapy and regularly thereafter. Patients should be given counseling on the appropriate levels of potassium and fluid intake, and 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

  1. Walmsley RN, White GH, Cain M, McCarthy PJ, Booth J "Hyperkalemia in the elderly." Clin Chem 30 (1984): 1409-12
  2. Lawson DH, O'Connor PC, Jick H "Drug attributed alterations in potassium handling in congestive cardiac failure." Eur J Clin Pharmacol 23 (1982): 21-5
  3. Lawson DH "Adverse reactions to potassium chloride." Q J Med 43 (1974): 433-40
  4. "Product Information. Cozaar (losartan)." Merck & Co., Inc PROD (2001):
  5. "Product Information. Diovan (valsartan)." Novartis Pharmaceuticals PROD (2001):
  6. Obialo CI, Ofili EO, Mirza T "Hyperkalemia in congestive heart failure patients aged 63 to 85 years with subclinical renal disease." Am J Cardiol 90 (2002): 663-5
  7. Jarman PR, Mather HM "Diabetes may be independent risk factor for hyperkalaemia." BMJ 327 (2003): 812
  8. Perazella MA "Drug-induced hyperkalemia: old culprits and new offenders." Am J Med 109 (2000): 307-14
  9. Jarman PR, Kehely AM, Mather HM "Hyperkalaemia in diabetes: prevalence and associations." Postgrad Med J 71 (1995): 551-2
  10. Perazella MA, Mahnensmith RL "Hyperkalemia in the elderly: drugs exacerbate impaired potassium homeostasis." J Gen Intern Med 12 (1997): 646-56
  11. Large DM, Carr PH, Laing I, Davies M "Hyperkalaemia in diabetes mellitus--potential hazards of coexisting hyporeninaemic hypoaldosteronism." Postgrad Med J 60 (1984): 370-3
View all 11 references

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Drug and food interactions

Moderate

irbesartan food

Applies to: Avalide (hydrochlorothiazide / irbesartan)

GENERALLY AVOID: Moderate-to-high dietary intake of potassium, especially salt substitutes, may increase the risk of hyperkalemia in some patients who are using angiotensin II receptor blockers (ARBs). ARBs can promote hyperkalemia through inhibition of angiotensin II-induced aldosterone secretion. Patients with diabetes, heart failure, dehydration, or renal insufficiency have a greater risk of developing hyperkalemia.

MANAGEMENT: Patients should receive dietary counseling and be advised to not use potassium-containing salt substitutes or over-the-counter potassium supplements without consulting their physician. If salt substitutes are used concurrently, regular monitoring of serum potassium levels is recommended. Patients should also be advised to seek medical attention if they experience symptoms of hyperkalemia such as weakness, irregular heartbeat, confusion, tingling of the extremities, or feelings of heaviness in the legs.

References

  1. "Product Information. Cozaar (losartan)." Merck & Co., Inc PROD (2001):
  2. "Product Information. Diovan (valsartan)." Novartis Pharmaceuticals PROD (2001):

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Moderate

hydroCHLOROthiazide food

Applies to: Avalide (hydrochlorothiazide / irbesartan)

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 "Fluoxetine-associated potentiation of calcium-channel blockers." J Clin Psychopharmacol 11 (1991): 390-1
  2. Shook TL, Kirshenbaum JM, Hundley RF, Shorey JM, Lamas GA "Ethanol intoxication complicating intravenous nitroglycerin therapy." Ann Intern Med 101 (1984): 498-9
  3. Feder R "Bradycardia and syncope induced by fluoxetine." J Clin Psychiatry 52 (1991): 139
  4. Ellison JM, Milofsky JE, Ely E "Fluoxetine-induced bradycardia and syncope in two patients." J Clin Psychiatry 51 (1990): 385-6
  5. Rodriguez de la Torre B, Dreher J, Malevany I, et al. "Serum levels and cardiovascular effects of tricyclic antidepressants and selective serotonin reuptake inhibitors in depressed patients." Ther Drug Monit 23 (2001): 435-40
  6. Cerner Multum, Inc. "Australian Product Information." O 0
  7. Pacher P, Kecskemeti V "Cardiovascular side effects of new antidepressants and antipsychotics: new drugs, old concerns?" Curr Pharm Des 10 (2004): 2463-75
  8. Andrews C, Pinner G "Postural hypotension induced by paroxetine." BMJ 316 (1998): 595
View all 8 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.

See also

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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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