Viagra, or sildenafil, primarily works by inhibiting an enzyme called phosphodiesterase-5 (PDE5). PDE5 breaks down cyclic guanosine monophosphate (cGMP), a crucial molecule for achieving an erection.
By blocking PDE5, Viagra allows cGMP levels to rise. Increased cGMP relaxes the smooth muscles in the blood vessels of the penis, causing them to dilate. This dilation increases blood flow into the penis, resulting in an erection.
Sexual stimulation remains necessary; Viagra doesn’t cause erections spontaneously. It simply enhances the body’s natural response to sexual stimulation by improving blood flow.
The process involves a complex interplay of neurological, vascular, and hormonal factors. Viagra specifically targets the vascular component, optimizing the blood flow necessary for a firm erection.
Remember: Consult your doctor before using Viagra or similar medications. They can assess your health and determine if this medication is appropriate for you. Proper medical guidance is vital for safe and effective use.
Note: This information is for educational purposes and does not constitute medical advice. Always consult a healthcare professional for personalized guidance.
