A client with a diagnosis of dementia of the Alzheimer type has been taking donepezil 10 mg/day for 3 months. The client's partner calls the clinic and reports that the client has increasing restlessness and agitation accompanied by nausea. What does the nurse advise the partner to do?
a) Increase the dosage of donepezil for better effectiveness.
b) Discontinue the medication and consult with the healthcare provider.
c) Administer an anti-nausea medication along with donepezil.
d) Switch to a different medication for Alzheimer's disease.