Tadalafil is the active ingredient in the medication Vidalista 20. This medication is used to treat impotency. This medication assists men in maintaining a long-lasting sexual erection. This medication should be taken 30 minutes or one hour before sexual activity. The drug Vidalista 20 has a 36-hour impact. This medication is administered in various dosages. Before taking Vidalista 20, you should talk to your doctor. This medication enhances men's sex lives.