A Male Patient with a Skin Infection Is Prescribed Cephalexin

A male patient with a skin infection is prescribed cephalexin (an antibiotic) 500 mg orally every 12 hours. The patient reports that the last time he took this medication, he had frequent episodes of loose stools. Which recommendation should the nurse make to the patient?

A) Stop taking the drug immediately if diarrhea develops.
B) Take an antidiarrheal agent, such as diphenoxylate.
C) Consume yogurt daily while taking the antibiotic.
D) Increase intake of fiber until the diarrhea stops.