Cialis,  its generic name tadalafil, is a prescription medication primarily used to treat erectile dysfunction (ED) in men. It belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors, which work by increasing blood flow to the penis during sexual stimulation.
Cialis is known for its long duration of action, with effects lasting up to 36 hours. This makes it popularly referred to as the "weekend pill." It allows for greater spontaneity in sexual activity, as individuals can take the medication in advance and enjoy its effects for an extended period.
Apart from treating ED, Cialis is also prescribed to treat another condition called benign prostatic hyperplasia (BPH), which is an enlargement of the prostate gland. In this case, Cialis helps relax the smooth muscles in the prostate and bladder, allowing for improved urinary flow.
It is important to note that Cialis should be taken as prescribed by a healthcare professional, and the recommended dosage and frequency should not be exceeded. Common side effects may include headache, muscle aches, indigestion, and back pain. Serious side effects are rare but can include a sudden decrease or loss of vision or hearing, an allergic reaction, or a prolonged erection lasting more than four hours (priapism). In such cases, immediate medical attention should be sought.