An adult patient is prescribed cimetidine (Tagamet). A nurse will instruct the patient that an appropriate dosage and frequency of cimetidine is what?

Question

A) 20 mg PO b.i.d
B) 150 mg PO b.i.d
C) 300 mg PO at bedtime
D) 800 mg PO at bedtime

Answer 1

D
Feedback:
An appropriate dosage and frequency for cimetidine is 800 mg PO at bedtime. Also, 300 mg can be taken q.i.d at meals and at bedtime. Ranitidine is taken 150 mg daily or b.i.d. Famotidine is taken 20 mg PO b.i.d. Nizatidine can be taken 150 to 300 mg PO at bedtime.