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Understanding Viagra Side Effects and Safety
How Viagra Works and Why Side Effects Occur
Viagra contains sildenafil citrate, a PDE5 inhibitor that increases blood flow to the penis during sexual arousal. This mechanism can affect blood vessels throughout the body, which explains why some men experience side effects. The same active ingredient is found in generic sildenafil, meaning both medications have identical side effect profiles. EverydayMeds offers both options, allowing patients to choose based on preference and budget.
Common Side Effects
Most Viagra side effects are mild and temporary, typically lasting a few hours. Headaches affect approximately 16% of users and occur due to blood vessel dilation. Facial flushing affects around 10% of men, causing redness in the face, neck, or chest. Indigestion and stomach upset occur in about 7% of users. Nasal congestion affects roughly 4% of men due to increased blood flow to nasal passages. Visual changes, including a blue tinge to vision, affect approximately 3% of users and are usually temporary.
Serious Side Effects Requiring Medical Attention
Priapism, an erection lasting over four hours, is rare but requires emergency treatment to prevent permanent damage. Sudden vision loss in one or both eyes is extremely rare but requires immediate medical attention. Sudden hearing loss or ringing in the ears warrants prompt medical evaluation. Severe allergic reactions, though uncommon, can include rash, difficulty breathing, or swelling of face, lips, or throat. Chest pain during sexual activity should prompt immediate medical assessment.
Factors Affecting Side Effect Risk
Age can influence side effect likelihood, with older men potentially more sensitive to effects. Dosage directly correlates with side effect risk - the 25mg starting dose typically causes fewer side effects than higher strengths. Alcohol consumption can increase risk of dizziness and low blood pressure. Existing medical conditions, particularly heart disease or diabetes, may increase side effect likelihood. Drug interactions, especially with blood pressure medications, can amplify side effects.
Managing and Minimising Side Effects
Starting with the lowest effective dose (typically 25mg or 50mg) can help minimise side effects. Taking Viagra on an empty stomach may reduce stomach upset for some men. Staying hydrated can help prevent headaches. Avoiding excessive alcohol consumption reduces risk of dizziness and blood pressure drops. Men experiencing persistent side effects should consult their prescriber about dose adjustment. Both branded Viagra and generic sildenafil offer the same dosage flexibility for optimising treatment whilst minimising unwanted effects.
