Megalis 10 mg is a medication primarily used to treat erectile dysfunction (ED) in men. It contains Tadalafil as its active ingredient, which is a phosphodiesterase type 5 (PDE5) inhibitor. Here are some key points about Megalis 10 mg:Tadalafil, which works by increasing blood flow to the penis during sexual stimulation. This helps men achieve and maintain an erection suitable for sexual activity.