How Effective Is Viagra and What Should You Expect?
Clinical Effectiveness of Viagra
Clinical studies show Viagra works effectively in approximately 70-80% of men with erectile dysfunction. The medication works by blocking the PDE5 enzyme, which increases blood flow to the penis during sexual stimulation. Success rates vary depending on the underlying cause of ED, with higher effectiveness in men with psychological causes compared to those with severe diabetes or cardiovascular conditions.
How Viagra Works in Your Body
Viagra contains sildenafil citrate, which belongs to a class of medications called PDE5 inhibitors. When sexually aroused, your body releases nitric oxide, which triggers increased blood flow. Viagra enhances this natural process by preventing the breakdown of cGMP, a chemical that relaxes blood vessels in the penis. This mechanism means Viagra only works when you're sexually stimulated - it won't cause spontaneous erections.
Timing and Duration
Viagra typically takes effect within 30-60 minutes of taking the tablet. The medication reaches peak levels in your bloodstream after about one hour. Effects can last up to 4-6 hours, though this doesn't mean you'll have an erection for this entire time. Taking Viagra with a large or fatty meal may delay its onset of action by 30-60 minutes.
Dosage and Optimisation
Most men start with a 50mg dose, which can be adjusted to 25mg or 100mg based on effectiveness and any side effects experienced. It's crucial to take only one dose per 24-hour period. Your prescriber will determine the most appropriate starting dose based on your age, health conditions, and current medications during your clinical assessment.
Branded vs Generic Options
EverydayMeds offers both Viagra (the branded version by Pfizer) and sildenafil (the generic alternative). Both contain the same active ingredient in identical strengths and work in exactly the same way. Generic sildenafil provides a more cost-effective option whilst maintaining the same clinical effectiveness as branded Viagra.
What Affects Viagra's Effectiveness
Several factors can influence how well Viagra works for you. Alcohol consumption can reduce effectiveness and increase the risk of side effects. Underlying health conditions such as diabetes, heart disease, or psychological factors may impact results. Some medications, particularly nitrates used for chest pain, are dangerous when combined with Viagra and represent absolute contraindications.
