A client with multiple sclerosis starts a new prescription, baclofen, to control muscle spasticity. Three days later, the client calls the clinic nurse and reports feeling fatigued and dizzy. Which instruction should the nurse provide?

A. Fatigue and dizziness are common side effects of baclofen, and the nurse should advise the client to avoid hazardous activities until these symptoms improve. B. Stopping baclofen suddenly can lead to withdrawal symptoms and should not be done without consulting a healthcare provider. C. Increasing fluid and protein intake is not specifically indicated for managing baclofen side effects. D. Immediate transportation to the emergency department is unnecessary unless the client exhibits severe or worsening symptoms not related to typical side effects.