Vidalista 20 contains Tadalafil 20 mg, which is mainly used to treat erectile dysfunction (ED) in men. What effect it has After taking Vidalista 20, it helps you: Achieve and maintain an erection when sexually stimulated Improve blood flow to the penis by relaxing blood vessels Support longer-lasting sexual performance in many men It does not cause an automatic erection—sexual stimulation is still required. How long it works Starts working in about 30–60 minutes Effects can last up to 24–36 hours (this is why tadalafil is sometimes called the “weekend pill” group, though duration varies by person) Common side effects Some people may experience: Vidalista 20 Flushing (warmth in face) Back pain or muscle aches Indigestion Nasal congestion Dizziness Important warnings Do not take it with nitrates (often used for chest pain), as this can dangerously lower blood pressure Be careful if you have heart disease, low blood pressure, or liver/kidney problems Alcohol can increase side effects like dizziness or low blood pressure Not recommended to combine with other ED medicines When to seek medical help Stop using it and get urgent care if: An erection lasts more than 4 hours (priapism) You have chest pain, severe dizziness, or fainting Sudden vision or hearing loss occurs (rare but serious) If you want, tell me your situation (age, other medicines, health conditions), and I can explain whether it’s generally safe or what dose is usually appropriate.