SIDE EFFECTS: Colesevelam usually is well-tolerated. Side effects may include:
PREPARATIONS: Tablet: 625 mg, white.
STORAGE: Colesevelam should be stored at room temperature, away from heat and light, and out of the reach of children.
DOSING: Colesevelam usually is taken one or two times daily with a meal.
DRUG INTERACTIONS: Colesevelam reduces the absorption of cyclosporine, glyburide (Micronase, DiaBeta, Glynase, Prestab), levothyroxine sodium (Synthroid, Levoxyl, Levothroid, Unithroid), and oral contraceptives containing ethinyl estradiol or norethindrone by binding to them in the stomach and preventing their absorption into the body. Colesevelam also may reduce the activity of phenytoin (Dilantin) and warfarin (Coumadin). Drugs that interact with colesevelam should be administered four hours before the administration of colesevelam and, when possible, drug levels should be monitored.
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