Spironolactone, finasteride, and dutasteride are discussed for hair maintenance, with concerns about testosterone and side effects like gynecomastia. Spironolactone is noted for use in both bodybuilding and hormone therapy, with low doses considered for minimizing side effects.
Low-dose oral minoxidil is used for hair loss and does not significantly affect blood pressure but may increase heart rate and cause hypotensive symptoms. Some users experience side effects like palpitations and shortness of breath, while others find it effective; topical minoxidil with tretinoin is also considered.