Tadalafil belongs to a group of medicines that delay the action of enzymes called phosphodiesterases that can interfere with erectile function. Tadalafil is used to treat men with erectile dysfunction (also called sexual impotence) because it helps to maintain an erection that has been created by stimulation. Tadalafil will not cause an erection without stimulation of the penis.
Click here to read the Cialis Prescribing Information for healthcare professionals.
Click here to read the Cialis Patient Information.