How Viagra Works: Complete Mechanism Guide
Primary Effects of Viagra
Viagra (sildenafil citrate) works as a PDE5 inhibitor, blocking the phosphodiesterase type 5 enzyme that restricts blood flow to the penis. When sexually aroused, Viagra helps maintain increased blood flow, supporting natural erectile function. The medication does not cause automatic erections - sexual stimulation remains necessary for effectiveness.
Timeline and Duration
Viagra typically begins working within 30-60 minutes of taking the tablet. Peak effects usually occur around 1-2 hours after consumption. The medication's effects can last 4-6 hours, though this doesn't mean erections persist throughout this period. Fatty meals may delay onset, so taking Viagra on an empty stomach often provides faster results.
Dosage Options and Effectiveness
EverydayMeds offers Viagra in three strengths: 25mg, 50mg, and 100mg tablets. Most men start with 50mg, with dosage adjusted based on effectiveness and tolerability. The maximum recommended frequency is once daily. Our clinical team also offers generic sildenafil as a cost-effective alternative containing the same active ingredient.
Expected Side Effects
Common side effects may include headaches, facial flushing, indigestion, and nasal congestion. These effects are generally mild and temporary. More serious side effects are rare but require immediate medical attention, including prolonged erections lasting over 4 hours or sudden vision/hearing changes.
Who Can Benefit from Viagra
Viagra is suitable for adult men experiencing erectile dysfunction, following proper clinical assessment. Our UK-licensed prescribers evaluate cardiovascular health, current medications, and medical history to ensure safe treatment. Men taking nitrate medications or with severe heart conditions cannot safely use Viagra due to potentially dangerous interactions.
Getting Started with Treatment
EverydayMeds provides convenient online consultations with qualified prescribers. Following assessment, eligible patients can choose between branded Viagra or generic sildenafil based on preference and budget. Both options provide identical therapeutic effects, with ongoing support available throughout treatment.
