Active substance: Cialis Tadalafil
Manufacturer / Brand: Lilly

Cialis 4x 20mg is a prescription medication used to treat erectile dysfunction and benign prostatic hyperplasia in men. It contains tadalafil, which is a PDE5 inhibitor that relaxes the blood vessels and increases blood flow to the penis. Cialis comes in tablet form and should be taken under the guidance of a healthcare provider. It is important to note that the medication may take up to 30 minutes to take effect and should not be taken with grapefruit juice.