Men use vidalista 40 mg to treat erectile dysfunction and impotence. This medication takes 6 hours to take effect. Only men who are at least eighteen years old should use this medication. The lethal ingredient in this medication, Tadalafil, aids men in maintaining a powerful erection during sexual activity. Our store offers vidalista for online purchase. This medication can be taken either before or after a meal. Follow your doctor's advice when taking this medication. Consume this medication with water; do not crush or chew the tablet.