The nurse is caring for an adolescent male with gynecomastia. What groups of drugs can induce gynecomastia in male adolescents? (Select all that apply.)
a. Oral antibiotics
b. Oral ketoconazoles
c. Calcium channel blockers
d. Histamine-2 receptor blockers
e. Cancer chemotherapeutic agents
ANS: B, C, D, E
Gynecomastia may be drug induced; calcium channel blockers, cancer chemotherapeutic agents, histamine-2 receptor blockers, and oral ketoconazoles have all been shown to cause the disorder. Oral antibiotics have not been shown to cause gynecomastia.
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