Role of Oral Minoxidil in Patterned Hair Loss.

Recent studies have shown that low-dose oral minoxidil (OM) can be a safe and effective treatment of numerous hair disorders including male-patterned hair loss (MPHL) and female-patterned hair loss (FPHL). There are several practical advantages of OM over its topical formulation: enhanced cosmesis, cost-savings, and the possibility of co-therapy with other topical formulations or topicals used for camouflage. This treatment may be particularly helpful for patients who are unable to tolerate topical minoxidil or other systemic treatments. Doses ranging from 0.25 to 1.25 mg daily are usually used for FPHL and doses ranging from 2.5 to 5 mg/day for MPHL. The low side-effect profile of low-dose OM allows for long-term adherence to the medication and favorable clinical response, resulting in stabilization and improvement of hair loss. More studies are needed to test the efficacy of OM in other types of alopecia as well as additional comparative studies assessing OM to other commonly used medications.