A solution consisting of 7.5 mg. of ammoidin and 3.75 mg. of ammidin per milliliter in isopropyl alcohol,* recently used for the treatment of vitiligo, was used on patients with alopecia areata in an attempt to cause regrowth of hair by the production of erythema or other mechanisms.
Subjects consisted of three patients with multiple patches of alopecia areata, who were otherwise normal. Some of the areas of alopecia areata of each patient were treated by light applica tion of the aforementioned liquid once each week and, as controls, other areas in each patient were treated with concentrated phenol, followed by neutralization with isopropyl alcohol. All areas were irradiated with cold quartz light (wave length—2,537 A.) at 1 in. (2.5 cm.) distance, starting with 15 seconds and increasing 15 seconds at each subsequent treatment, at each visit. In addition, an intramuscular injection consisting of 10 mg. of