The accidental discoveries that gave us Viagra and hair loss medicines (opens original article in a new tab)

Several medications initially developed for other purposes were found to treat male health issues, including erectile dysfunction and hair loss, through accidental discoveries and repurposing.

• Sildenafil was originally developed for angina but discovered to treat erectile dysfunction, leading to Viagra.
• Finasteride was initially for BPH but found to reduce hair loss by blocking DHT.
• Minoxidil was first a blood pressure drug that unexpectedly caused hair growth, later approved for hair loss.