19) A client who needs to take a histamine H2 antagonist also has a history of several health problems. The nurse explains to this client that which histamine antagonist should be avoided because it has the greatest number of drug interactions?
A) Famotidine (Pepcid)
B) Ranitidine (Zantac)
C) Nizatidine (Axid)
D) Cimetidine (Tagamet)

ANSWER