Sildenafil citrate is the active ingredient in Viagra and several generic medications. It works by increasing blood flow to the penis, aiding in achieving and maintaining an erection.
How Sildenafil Citrate Works
Sildenafil inhibits an enzyme called phosphodiesterase-5 (PDE5). This enzyme breaks down cyclic guanosine monophosphate (cGMP), a molecule crucial for penile erection. By blocking PDE5, sildenafil allows cGMP levels to rise, resulting in increased blood flow to the penis.
Important Considerations Before Use
- Consult your doctor before taking sildenafil, especially if you have heart problems, low blood pressure, or liver/kidney disease. Avoid taking nitrates concurrently, as this combination can dangerously lower blood pressure. Sildenafil interacts with some medications; inform your physician of all your current medications and supplements. Common side effects include headache, flushing, nasal congestion, and visual disturbances. Consult a doctor if these persist or worsen. The typical dosage is 50mg, but your doctor may adjust it based on your individual needs and health status.
Dosage and Administration
Take the tablet orally, typically about an hour before sexual activity. Swallow the tablet whole with a glass of water. Do not crush or chew the tablet. The effects generally last for 4-5 hours. Do not exceed the recommended dosage.
Possible Interactions
Sildenafil may interact with certain medications, including: nitrates, alpha-blockers, and certain antifungals. Always disclose all medications to your physician.
Seeking Medical Advice
This information is for educational purposes only and does not replace professional medical advice. Always consult with your doctor or pharmacist before starting any new medication, including sildenafil.
