Tazzle 20 mg contains Tadalafil as its active ingredient. It is primarily used to treat erectile dysfunction (ED) in men. Key points about Tazzle 20 mg: Active ingredient: Tadalafil 20 mg Use: Helps men achieve and maintain an erection by increasing blood flow to the penis during sexual stimulation Onset: Usually takes about Tazzle 20 mg  to 2 hours to start working Duration: Can last up to 36 hours, which is longer than many other ED medications (sometimes called the “weekend pill&rdquoDosage: 20 mg is a common dose for as-needed use Side effects: May include headache, flushing, nasal congestion, muscle aches, back pain, dizziness Tazzle 20 mg works by relaxing muscles in blood vessel walls to improve blood flow, making it easier to get and maintain an erection.