The Primary Care NP Is Preparing to Prescribe Sildenafil for a Man

The primary care NP is preparing to prescribe sildenafil for a man who has erectile dysfunction.The NP should remember to tell this patient:

A) to avoid oral nitrates while taking this medication.
B) that the drug may cause penile aching.
C) to use a condom if his sexual partner is pregnant.
D) dyspepsia may occur and may warrant discontinuation of the drug.