The Science Behind Viagra's Effectiveness
Understanding PDE5 Inhibition
Viagra belongs to a class of medications called PDE5 inhibitors. When you become sexually aroused, your body naturally releases nitric oxide in the penis, which activates an enzyme that produces cyclic guanosine monophosphate (cGMP). This chemical relaxes the smooth muscle in blood vessels, allowing increased blood flow to the penis and enabling an erection.
The PDE5 enzyme breaks down cGMP, which can prevent or reduce erections. Viagra works by blocking this PDE5 enzyme, allowing cGMP levels to remain elevated for longer periods. This results in improved blood flow and the ability to achieve and maintain an erection when sexually stimulated.
Timing and Duration of Effects
Viagra typically begins working within 30-60 minutes of taking the tablet, though this can vary between individuals. The medication reaches peak effectiveness approximately 1-2 hours after consumption. It's important to note that sexual stimulation is still required for Viagra to be effective - it does not cause automatic erections.
The effects of Viagra can last for 4-6 hours, though this doesn't mean you'll have an erection for this entire period. Rather, you may find it easier to achieve erections during this timeframe when sexually aroused. Individual responses may vary based on factors such as age, overall health, and other medications you may be taking.
Factors Affecting Absorption
Several factors can influence how quickly and effectively Viagra works in your body. Taking the medication on an empty stomach generally results in faster absorption, whilst consuming large or fatty meals beforehand may delay its onset of action. Alcohol consumption should be limited, as excessive drinking can reduce the effectiveness of the treatment and increase the risk of side effects.
Dosage Considerations
Viagra is available in three strengths: 25mg, 50mg, and 100mg tablets. Most men start with a 50mg dose, which can be adjusted based on effectiveness and tolerability. Your prescriber will determine the most appropriate dose for you based on your medical history, current health status, and response to treatment. The maximum recommended frequency is one dose per 24-hour period.
Generic Sildenafil vs Branded Viagra
EverydayMeds offers both branded Viagra and generic sildenafil tablets. Both contain the same active ingredient (sildenafil citrate) and work in exactly the same way in your body. The generic version provides a cost-effective alternative whilst maintaining the same clinical effectiveness and safety profile as the branded medication. You can choose between these options during the checkout process based on your preference and budget.
Safety and Suitability
Before prescribing Viagra or sildenafil, our UK-licensed prescribers will conduct a thorough assessment of your medical history and current health status. This is particularly important because Viagra can interact with certain medications, especially nitrates used for heart conditions, and may not be suitable for men with certain cardiovascular conditions.
