Sildenafil citrate, the active ingredient in Viagra, works by increasing blood flow to the penis. This allows for firmer erections.
It’s a phosphodiesterase-5 (PDE5) inhibitor. PDE5 enzymes break down a chemical called cGMP, which is crucial for achieving and maintaining an erection. By inhibiting PDE5, sildenafil allows cGMP levels to remain high, facilitating blood flow.
- How it works: Sildenafil doesn’t directly cause an erection; it only enhances the body’s natural response to sexual stimulation. Dosage: The recommended starting dose is typically 50mg, taken as needed, about an hour before sexual activity. Your doctor will determine the appropriate dosage for you. Timing: The effects can last for up to four hours. Side effects: Common side effects include headaches, flushing, nasal congestion, and visual disturbances. These are usually mild and temporary. Consult your doctor if you experience more serious side effects.
Important Considerations:
Sildenafil is not suitable for everyone. Men with heart conditions, low blood pressure, or certain other health problems should consult their physician before use. Do not combine sildenafil with nitrates. This combination can cause a dangerous drop in blood pressure. Always follow your doctor’s instructions regarding dosage and frequency of use. Sildenafil is a prescription medication. Obtain it only from a legitimate source.
This information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional before starting any new medication.
