Minoxidil, sold under brand names like Loniten and Rogaine, is a medication used for treating high blood pressure and pattern hair loss. Originally developed in the late 1950s by the Upjohn Company (later part of Pfizer) to treat ulcers, it was found to be a potent vasodilator. The FDA approved oral minoxidil (Loniten) for high blood pressure in 1979. In 1987, a topical formulation was developed to treat androgenic alopecia. It is available as a generic medication by prescription in oral tablet form and over-the-counter as a topical liquid or foam.
Minoxidil functions as a vasodilator, relaxing blood vessels and improving blood flow. For hair loss, it enhances microvascular circulation to stimulate hair follicles, encouraging transition from the resting (telogen) to growth (anagen) phase. The precise mechanism for hair growth isn't fully understood but involves widening blood vessels and opening potassium channels, allowing more oxygen, blood, and nutrients to the follicles. Key features include its effectiveness for androgenic alopecia, and its availability in topical solutions (2% and 5%) and oral tablets. Johnson & Johnson, Taisho Pharma, and Costco Wholesale are among the largest manufacturers. Topical minoxidil is available over the counter, while oral minoxidil requires a prescription.
The price of minoxidil varies. Brand-name Rogaine ranges from $30 to $45, while generic versions may be available for as low as $15 a month through online platforms. A 3-month supply of 5% Rogaine foam or liquid solution can be purchased for just under $50 on Rogaine's official website. Prices can range from $10.18 to $32.00 depending on the dose and pharmacy. Minoxidil is widely available in various forms (topical solutions, foam, and oral tablets) at pharmacies, online retailers, and various stores.