Tadalista 40 is used to increase blood flow to the penis in men. This drug contains the main ingredient Tadalafil which helps men to get strong erection for a long time. You should not take any other medicine if you are taking this medicine. This medicine can be taken with food or on an empty stomach. This medication is only for men 18 years of age or older. This medicine can be taken with water only. This medicine should be stored in a dark, cool and dry place at room temperature. This medicine should be taken only once in 24 hours.