A patient on antiulcer therapy complains of reduced libido and impotence. The nurse identifies a knowledge deficit in the patient
During teaching, the nurse informs the patient that _______ has been shown to cause reduced libido and impotence.
a. nizatidine (Axid)
b. cimetidine (Tagamet)
c. ranitidine (Zantac)
d. famotidine (Pepcid)
ANS: B
Cimetidine binds to androgen receptors, causing receptor blockade, which results in gynecomastia, reduced libido, and impotence.
Nizatidine, ranitidine, and famotidine do not bind to androgen receptors and therefore do not affect the libido or cause impotence.
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