Some people are unable to maintain a strong erection despite being sexually aroused during sexual activity. While some will be able to get an erection, it will be brief. This is usually due to a decrease in blood supply to the penis. It is very important to take tadalista 40 medicine to treat it. Very good results can be obtained by taking this medicine only once. This drug lasts 36 hours longer than other drugs. This medicine is 100% safe and effective medicine.