Tazzle is a brand name for a medication that contains tadalafil as its active ingredient. Tadalafil is a phosphodiesterase type 5 (PDE-5) inhibitor, and it is primarily used to treat erectile dysfunction (ED) in men. Tadalafil works by increasing blood flow to the penis, which helps men achieve and maintain an erection when sexually stimulated. It is available in various strengths, including Tazzle 10 mg, Tazzle 20 mg, and Tazzle 10/20/40 mg, among others.