Vidalista 20mg pill is very useful for patients with low erections. It also contains an ingredient called tadalafil, which relaxes the muscles by increasing blood flow to the penile arteries. A strong erection can be enjoyed by using this medicine 30-40 minutes before intercourse. This medicine should only be taken by men above 18 years of age. This medicine should be used only on the advice of the doctor. It is advised to use this medicine only once in 24 hours.