A Simple Guide to Tadalafil, Its Uses, Dosage, Safety, Side Effects, and Important Precautions Actilis 20 MG is a medicine marketed for the treatment of erectile dysfunction (ED). According to the manufacturer's product information, Actilis contains tadalafil, an active ingredient belonging to a group of medicines called phosphodiesterase type-5 (PDE5) inhibitors. Tadalafil is...