Finasteride is usually well tolerated, but can occasionally have sexual side effects. The sexual side effects include a small risk (<5%) of decreased libido, decreased ejaculatory volume, and erectile dysfunction (ED). These side effects usually go away after stopping the medication.
Minoxidil (Rogaine) is an over-the-counter medication that's usually well tolerated. Rarely, it can irritate the scalp or increase facial hair growth where it's applied.
Camouflaging agents are available over the counter, and are used to reduce the appearance of hair loss. They come in different forms (powders, fibers, sprays) and may cause scalp irritation.