Tadalafil widens the blood vessels that supply the penis, allowing more blood flow to the area to help you maintain a firmer erection during sexual intercourse. Tadalafil is there to help, but it will not increase your desire for sex.
HOW TO TAKE TADALAFIL
Tadalafil should not be taken with a meal as this can delay absorption. Swallow the tablet whole with water and avoid taking it with alcohol or grapefruit juice as this may affect how the medicine works and increase the risk of adverse side effects.
HOW LONG DOES TADALAFIL LAST
Tadalafil may remain effective for up to 36 hours after taking it. But it only works if you are sexually aroused, so it will need your help. Some foreplay prior to sexual activity will do the trick. The erection will go away as normal after sex.