The nurse is preparing instructions for a client with a new prescription for colesevelam [Welchol]. Which of the following will the nurse include in medication teaching?

A. Constipation, not diarrhea, is a more common side effect of colesevelam. B. Although colesevelam may interfere with the absorption of fat-soluble vitamins, this is not the priority teaching point. C. Colesevelam should be taken as prescribed, not repeatedly within short intervals. D. Colesevelam can interfere with the absorption of other medications; therefore, it should be taken at least 4 hours after other medications to avoid interactions.