Sildenafil citrate 100mg is a medication containing the active ingredient sildenafil, commonly known as Viagra. It treats erectile dysfunction (ED) by increasing blood flow to the penis.
Mechanism of Action
Sildenafil inhibits a specific enzyme, phosphodiesterase-5 (PDE5). PDE5 breakdown of cGMP, a molecule crucial for penile erection, is blocked by sildenafil. This allows for increased cGMP levels, resulting in relaxed penile muscles and improved blood flow, facilitating erection.
Dosage and Administration
The recommended starting dose is usually 50mg, taken as needed, about an hour before sexual activity. Your doctor may adjust the dosage based on your individual needs and response. Do not exceed the recommended dosage without consulting your physician.
Important Considerations
Sildenafil can interact with certain medications, particularly nitrates. Consult your doctor about all medications you are taking before using sildenafil. Side effects, though generally mild, may include headaches, flushing, and nasal congestion. Seek immediate medical attention if you experience prolonged erection (priapism) or vision changes.
