tadalafil vidalista 20 mg is a prescription drug used to treat erectile dysfunction (impotence) in men. It works by increasing blood flow to the testicles. It helps men to have or establish a sale. Take this medicine 1 hour before sex so that you and your partner can enjoy sex. The effect of this medicine lasts for 6 hours, so only take this medicine once in 24 hours. You can also take this medicine before meals or after meals. Take only as advised by doctor. You can take this medicine with water, but do not drink or bite vidalista ct 20 mg.