A 25-Year-Old Man with Androgenetic Alopecia Developed Symptoms of Post-Finasteride Syndrome After Treatment with Finasteride and Dutasteride

A 25-year-old man with androgenetic alopecia developed symptoms of post-finasteride syndrome, including delusional disorder, erectile dysfunction, testicular pain, sensation of cold in the penis, diminished volume of ejaculation, and loss of libido, after 8 months of treatment with finasteride and dutasteride. The symptoms appeared 4 months after discontinuing the drugs and the serum dihydrotestosterone level was reduced but later normalized. The authors report this case as an example of post-finasteride syndrome in their 20-year prescription practice of 5-alpha-reductase inhibitors.