Its exact mechanism of action isn’t fully understood. But we know minoxidil is a vasodilator, meaning it widens blood vessels ...

Oral minoxidil is a commonly prescribed treatment for hair loss. The drug is also the active ingredient in over-the-counter Rogaine. The prescription treatment is known, however, to dilate blood ...

A 60-year-old woman presented with itchy, eczematous, and moderately exudative lesions on the scalp after 4 months' use of a galenic lotion of minoxidil 5% (minoxidil 5%, propylene glycol 15% ...