Viagra, or sildenafil, primarily works by inhibiting an enzyme called phosphodiesterase-5 (PDE5). This enzyme normally breaks down cGMP, a molecule crucial for blood vessel relaxation. By blocking PDE5, Viagra increases cGMP levels, leading to vasodilation in the penis, facilitating an erection.
Short-Term Effects:
- Improved erectile function. Increased blood flow to the penis.
These effects are generally temporary, lasting for several hours.
Long-Term Effects and Considerations:
Long-term Viagra use (beyond the recommended duration for treating erectile dysfunction) requires careful monitoring. While generally well-tolerated, potential side effects can include:
- Headaches Facial flushing Nasal congestion Visual disturbances (blurred vision, blue-tint vision) Hearing loss (in rare cases)
Furthermore, prolonged use might increase the risk of certain cardiovascular issues, such as heart attack or stroke, especially in individuals with pre-existing conditions. Always consult a physician before starting or continuing long-term use.
Important Safety Recommendations:
Regularly monitor blood pressure and heart health. Avoid combining Viagra with nitrates or other medications that may interact negatively. Inform your doctor about all medications and health conditions before taking Viagra. Follow the prescribed dosage strictly. Report any unusual side effects immediately to your doctor.
Open communication with your healthcare provider is paramount for safe and effective management of erectile dysfunction. Regular check-ups are crucial to ensure the ongoing suitability of Viagra and to address any potential complications.
