Topilutamide (INN), known more commonly as fluridil (brand name Eucapil), is a topical non-steroidal antiandrogen marketed by Interpharma Praha which is used in a number of European countries in the treatment of androgenic alopecia. Sold as Eucapil, it is available as a 2% topical formulation intended for application to the scalp. The drug was launched in 2003, and is marketed in the Czech Republic and Slovakia.