(PHARM) A nurse is reinforcing teaching with a client who has multiple sclerosis and a new prescription for baclofen, which of the following instructions should the nurse include?

A. Baclofen can be taken with or without food, but taking it with food may help reduce GI upset. B. Headache is not a reason to stop baclofen abruptly; doing so may cause withdrawal symptoms including seizures or hallucinations. C. Baclofen can cause drowsiness, dizziness, and sedation, especially when therapy is initiated. Clients should avoid driving or operating heavy machinery until they understand how the medication affects them. D. Constipation, not diarrhea, is a more common side effect of baclofen.