Drug Interactions between hydrochlorothiazide / irbesartan and sodium nitrite
This report displays the potential drug interactions for the following 2 drugs:
- hydrochlorothiazide/irbesartan
- sodium nitrite
Interactions between your drugs
hydroCHLOROthiazide sodium nitrite
Applies to: hydrochlorothiazide / irbesartan and sodium nitrite
MONITOR: Coadministration with antihypertensive agents, diuretics, vasodilators, or phosphodiesterase-5 (PDE5) inhibitors may potentiate the hypotensive effect of sodium nitrite. Since sodium nitrite can cause serious hypotension and methemoglobin formation, patients may be at increased risk for complications related to inadequate perfusion and oxygenation. In healthy volunteers, oral doses of 120 to 180 mg caused minimal cardiovascular changes when subjects were maintained in the horizontal position. However, subjects exhibited tachycardia and hypotension with syncope within minutes after being placed in the upright position. A wide range of methemoglobin concentrations may occur following sodium nitrite administration. Methemoglobin concentrations as high as 58% have been reported after administration of two 300 mg doses to an adult. There have been reports of severe hypotension, methemoglobinemia, cardiac dysrhythmias, coma, and death in patients without life-threatening cyanide poisoning but who were treated with injection of sodium nitrite at dosages less than twice those recommended for the treatment of cyanide poisoning.
MANAGEMENT: Sodium nitrite should be used with caution in the presence of concomitant antihypertensive agents, diuretics, vasodilators, or PDE5 inhibitors. Hemodynamics should be monitored during and after administration of sodium nitrite, and the infusion rate decreased if significant hypotension occurs. In addition, methemoglobin levels should be monitored and oxygen administered during treatment whenever possible.
References
- (2012) "Product Information. Sodium Nitrite (sodium nitrite)." Hope Pharmaceuticals
sodium nitrite irbesartan
Applies to: sodium nitrite and hydrochlorothiazide / irbesartan
MONITOR: Coadministration with antihypertensive agents, diuretics, vasodilators, or phosphodiesterase-5 (PDE5) inhibitors may potentiate the hypotensive effect of sodium nitrite. Since sodium nitrite can cause serious hypotension and methemoglobin formation, patients may be at increased risk for complications related to inadequate perfusion and oxygenation. In healthy volunteers, oral doses of 120 to 180 mg caused minimal cardiovascular changes when subjects were maintained in the horizontal position. However, subjects exhibited tachycardia and hypotension with syncope within minutes after being placed in the upright position. A wide range of methemoglobin concentrations may occur following sodium nitrite administration. Methemoglobin concentrations as high as 58% have been reported after administration of two 300 mg doses to an adult. There have been reports of severe hypotension, methemoglobinemia, cardiac dysrhythmias, coma, and death in patients without life-threatening cyanide poisoning but who were treated with injection of sodium nitrite at dosages less than twice those recommended for the treatment of cyanide poisoning.
MANAGEMENT: Sodium nitrite should be used with caution in the presence of concomitant antihypertensive agents, diuretics, vasodilators, or PDE5 inhibitors. Hemodynamics should be monitored during and after administration of sodium nitrite, and the infusion rate decreased if significant hypotension occurs. In addition, methemoglobin levels should be monitored and oxygen administered during treatment whenever possible.
References
- (2012) "Product Information. Sodium Nitrite (sodium nitrite)." Hope Pharmaceuticals
Drug and food interactions
irbesartan food
Applies to: 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
- (2001) "Product Information. Cozaar (losartan)." Merck & Co., Inc
- (2001) "Product Information. Diovan (valsartan)." Novartis Pharmaceuticals
hydroCHLOROthiazide food
Applies to: 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
- Sternbach H (1991) "Fluoxetine-associated potentiation of calcium-channel blockers." J Clin Psychopharmacol, 11, p. 390-1
- Shook TL, Kirshenbaum JM, Hundley RF, Shorey JM, Lamas GA (1984) "Ethanol intoxication complicating intravenous nitroglycerin therapy." Ann Intern Med, 101, p. 498-9
- Feder R (1991) "Bradycardia and syncope induced by fluoxetine." J Clin Psychiatry, 52, p. 139
- Ellison JM, Milofsky JE, Ely E (1990) "Fluoxetine-induced bradycardia and syncope in two patients." J Clin Psychiatry, 51, p. 385-6
- 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
- Cerner Multum, Inc. "Australian Product Information."
- Pacher P, Kecskemeti V (2004) "Cardiovascular side effects of new antidepressants and antipsychotics: new drugs, old concerns?" Curr Pharm Des, 10, p. 2463-75
- Andrews C, Pinner G (1998) "Postural hypotension induced by paroxetine." BMJ, 316, p. 595
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
| Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
| Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
| 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. | |
| No interaction information available. |
Further information
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