What advice should the nurse provide to reduce side effects of diltiazem?

To reduce side effects of diltiazem, advising a patient to change positions slowly from sitting to standing is sound guidance. Diltiazem is a calcium channel blocker commonly used to manage hypertension and certain types of heart conditions. One of the common side effects associated with this medication is orthostatic hypotension, which can lead to dizziness or fainting when moving quickly from a sitting or lying position to standing. By encouraging the patient to take their time when changing positions, the risk of sudden drops in blood pressure and the resultant symptoms can be minimized. This simple adjustment in behavior can enhance the patient's safety and comfort while on this medication.