Name some medications that cause hair loss.

Anticancer medications, colchicine, thallium (rat poisons and insecticides), antiepileptic drugs (phenytoin, valproic acid, and carbamazepine), anticlotting drugs (heparin and coumarin), and retinoids (acitretin).

Bergfeld W: Telogen effluvium. In McMichael A, Hordinsky M, editors: Hair and scalp diseases, New York, 2008, Informa Healthcare, pp 119–135.

Brodin M: Drug-related alopecia, Dermatol Clin 5:571–579, 1987.