Tadalafil, the active ingredient in Cialis, works by inhibiting a specific enzyme called phosphodiesterase-5 (PDE5). This enzyme breaks down cyclic guanosine monophosphate (cGMP), a molecule crucial for achieving and maintaining an erection.
By blocking PDE5, tadalafil increases cGMP levels. Higher cGMP levels relax the smooth muscles in the penis, allowing increased blood flow. This enhanced blood flow is what facilitates an erection in response to sexual stimulation.
The duration of tadalafil’s effect is longer than that of other PDE5 inhibitors, often lasting up to 36 hours. This extended duration allows for greater spontaneity in sexual activity.
Tadalafil’s effectiveness varies among individuals. Factors such as age, overall health, and the severity of erectile dysfunction influence response. Consult your doctor to determine if tadalafil is a suitable treatment option for you.
Remember, tadalafil is a prescription medication. Always follow your doctor’s instructions regarding dosage and potential side effects. Discuss any pre-existing health conditions, particularly heart problems, with your physician before starting tadalafil.
While generally safe, potential side effects include headache, flushing, nasal congestion, and upset stomach. Rare but more serious side effects can occur; seek immediate medical attention if you experience chest pain, vision changes, or prolonged erection (priapism).
