{Reference Type}: Case Reports {Title}: Psoriasiform Drug Eruption to Finasteride: Uncommon Side Effect of a Commonly Used Drug. {Author}: Muddebihal A;Khurana A;Kulhari A;Ahuja A; {Journal}: Int J Trichology {Volume}: 14 {Issue}: 6 {Year}: Nov-Dec 2022 暂无{DOI}: 10.4103/ijt.ijt_42_21 {Abstract}: Finasteride, a 5-α reductase inhibitor, is generally well tolerated on long-term use and cutaneous adverse events have rarely been observed with the drug. We present the case of a 25-year-old male who developed an extensive psoriasiform eruption within a week of starting finasteride 1 mg for androgenetic alopecia.