A nurse is caring for a client who is taking amitriptyline. The nurse should monitor for which of the following adverse effects?

Choice A reason: Drooling is not a common side effect of amitriptyline; instead, dry mouth due to anticholinergic effects is more likely. Choice B reason: Orthostatic hypotension is a well-documented adverse effect of amitriptyline, related to its action on the autonomic nervous system. Nurses should closely monitor for dizziness, falls, or fainting. Choice C reason: Diarrhea is not a typical adverse effect of amitriptyline; constipation is more commonly seen because of anticholinergic properties. Choice D reason: Metallic taste in the mouth is not a notable adverse effect of amitriptyline and is more often associated with other medications such as certain antibiotics.