The vidalista CT 20 drug made from tadalafil is known as weekend pill and this is because the drug is activated after entering the body and is able to work for a whole week. The medicine Vidalista gives a person the erection to have sex is very strong and can last for 36-48 hours. The peculiarity of Vidalista medicine is that it has shown similar efficacy in any person above 18 years of age.