Olmetec Drug Interactions

Use with Lithium: Increases in serum lithium concentrations and lithium toxicity have been reported during concomitant administration of lithium with angiotensin II receptor antagonists, including olmesartan. Monitor serum lithium levels during concomitant use.
Dual Blockade of the Renin-Angiotensin System (RAS): Dual blockade of the RAS with angiotensin receptor antagonists, angiotensin converting enzyme (ACE) inhibitors or aliskiren is associated with increased risks of hypotension, hyperkalemia and changes in renal function (including acute renal failure) compared to monotherapy. Monitor blood pressure, renal function and electrolytes in patients on olmesartan and other agents that affect the RAS.
Use with Aliskiren: Do not co-administer aliskiren with olmesartan medoxomil (Olmetec) in patients with diabetes (see Contraindications) because dual use is associated with increased risks of hypotension, hyperkalemia, and changes in renal function (including acute renal failure) compared to monotherapy.
Non-steroidal Anti-inflammatory Drugs (NSAIDs): NSAIDs and angiotensin-receptor blockers (ARBs) may act synergistically by decreasing glomerular filtration. The concomitant use of NSAIDs and ARBs may increase the risk of worsening renal function.
Additionally, the antihypertensive effect of ARBs, including olmesartan, may be attenuated by NSAIDs, including selective cox2 inhibitors.
Use with Colesevelam Hydrochloride: Concurrent administration of bile acid sequestering agent colesevelam hydrochloride reduces the systemic exposure and peak plasma concentration of olmesartan. Administration of olmesartan at least 4 hours prior to colesevelam hydrochloride decreased the drug interaction effect (see Pharmacology under Actions).