Understanding Viagra's Mechanism and Side Effects
How Viagra Works in Your Body
Viagra contains sildenafil citrate, which blocks the PDE5 enzyme responsible for reducing blood flow to the penis. When sexually aroused, this mechanism allows increased blood circulation, helping achieve and maintain erections. The medication begins working within 30-60 minutes and effects may last 4-6 hours, though this doesn't mean erections persist throughout this period.
Common Side Effects and Management
Most men experience mild, temporary side effects when starting Viagra. Headaches affect approximately 16% of users and can be managed by staying well-hydrated and avoiding alcohol. Flushing occurs in about 10% of men and typically subsides within 2-3 hours. Indigestion affects around 7% of users and may be reduced by taking Viagra on an empty stomach or with light meals.
When to Seek Medical Attention
Whilst serious side effects are rare, certain symptoms require immediate medical attention. Contact emergency services if experiencing chest pain, difficulty breathing, or sudden vision/hearing loss. Priapism (erections lasting over 4 hours) affects fewer than 1% of users but requires urgent treatment to prevent permanent damage. Blood pressure changes may occur, particularly dangerous for men taking nitrate medications.
Minimising Side Effects
Several strategies can reduce the likelihood and severity of side effects. Taking Viagra 2-3 hours after eating improves absorption and reduces nausea. Limiting alcohol consumption prevents additional blood pressure effects and maintains treatment effectiveness. Starting with the lowest effective dose (typically 50mg) allows assessment of individual tolerance before adjusting if necessary.
Viagra vs Sildenafil: Same Active Ingredient
EverydayMeds offers both branded Viagra and generic sildenafil at checkout, allowing patients to choose based on preference and budget. Both contain identical active ingredients and work through the same mechanism, with comparable side effect profiles. Generic sildenafil provides a cost-effective alternative whilst maintaining the same clinical effectiveness and safety standards as branded Viagra.
