This medication is used to treat male sexual disorders such as impotence and erectile dysfunction. Tadalafil, a component in Vidalista 20 Tadalafil, increases blood flow to a man’s penile tissues. This medication should be taken exactly as prescribed by your doctor. This medication can be used before or after a meal. Vidalista 20 should be taken with water and not broken or chewed. This drug should not be taken with fatty foods or cold beverages. This medication has a 36-hour duration of action.