Vidalista tablet is an effective medicine for treating erectile dysfunction. The effect of this drug lasts for 36 hours. This has been called for a very long time. Hence it is known as Weekend Pills. The effect of this drug is long lasting and vidalista 20 is available in the market at a reasonable price. This drug has become popular for men. This drug contains an active ingredient called tadalafil. Take this medicine one hour before sexual intercourse.