[Hypertrichosis caused by minoxidil].

Minoxidil (6-amino-1,2-dihydro-1-hydroxy-2-imino-4-piperidinopyrimidine), a new substance for the treatment of severe hypertension, is frequently associated with hypertrichosis. This side effect may spontaneously disappear despite continuation of minoxidil-treatment, as it is demonstrated in this case-report.