To Alleviate Pain Associated with Trigeminal Neuralgia, a Patient Is

To alleviate pain associated with trigeminal neuralgia, a patient is taking Tegretol (carbamazepine) . What health education should the nurse provide to the patient before initiating this treatment?

A) Concurrent use of calcium supplements is contraindicated.
B) Blood levels of the drug must be monitored.
C) The drug is likely to cause hyperactivity and agitation.
D) Tegretol can cause tinnitus during the first few days of treatment.