Which statement accurately summarizes adverse effects counseling for finasteride and minoxidil?

• A. Finasteride has no sexual side effects; minoxidil has no scalp irritation
• B. Finasteride may cause sexual side effects and fetal risks; minoxidil may cause scalp irritation and unwanted hair growth beyond treated areas
• C. Both drugs are free of adverse effects
• D. Both drugs cure baldness quickly with no counseling needed

Answer: (B)

Adverse effects counseling for these hair loss drugs focuses on the specific risks tied to each medication and how patients can use them safely. Finasteride, a 5-alpha-reductase inhibitor, can cause sexual side effects such as decreased libido, erectile dysfunction, and ejaculation problems. It also carries fetal risk due to its antiandrogen effect, so pregnant women should avoid handling the tablets, especially if broken or crushed, to prevent exposure that could affect a male fetus. Minoxidil, used topically, most often leads to local scalp irritation or dermatitis. It can also cause unwanted hair growth beyond the treated areas if the medication spreads to other parts of the body. When counseling, emphasize applying minoxidil to a dry scalp, washing hands after use, avoiding application on irritated skin, and stopping use if irritation or unwanted hair occurs. Systemic effects from topical minoxidil are uncommon but possible with large amounts. This aligns with the best summary: finasteride may cause sexual side effects and fetal risks; minoxidil may cause scalp irritation and unwanted hair growth beyond treated areas.