Does Olmesartan Interact with Colesevelam?
Olmesartan and Colesevelam have a unknown drug interaction according to U.S. FDA drug labeling data. 7 DRUG INTERACTIONS Concomitant use with colesevelam hydrochloride may decrease the exposure of the following drugs: Drugs with a narrow therapeutic index (e.g., cyclosporine), phenytoin, thyroid hormone replacement therapy, warfarin, oral contraceptives containing ethinyl estradiol and norethindrone, olmesartan medoxomil, and sulfonylureas (glimepiride, glipizide, glyburide). Olmesartan Medoxomil Clinical Impact In vivo drug interactions studies showed a decrease in olmesartan medoxomil when coadministered with colesevelam hydrochloride [see Clinical Pharmacology ( 12.3 )] . Intervention Administer olmesartan medoxomil 4 hours prior to colesevelam hydrochloride. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.
- Severity
- Unknown
- Management
- Consult your pharmacist
- Data Source
- U.S. FDA via OpenFDA
What To Tell Your Doctor or Pharmacist
If you are taking Olmesartan and your doctor is considering prescribing Colesevelam (or vice versa), make sure to:
- Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
- Ask whether the benefits of combining these medications outweigh the risks for your specific situation
- Ask what symptoms to watch for that would indicate the interaction is causing problems
- Never stop or change either medication without first consulting your healthcare provider