Quick Summary
Sildenafil is generally well tolerated, but like all PDE5 inhibitors it may cause side effects. Most are mild and temporary, while serious reactions are rare.
- Most side effects are mild and short-term
- Risk increases with higher doses (100mg)
- Serious reactions are rare but require medical attention
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Common Side Effects
Most Frequent
Mild Effects
- Headache
- Flushing
- Nasal congestion
- Dizziness
- Indigestion
Temporary
Visual Changes
- Blurred vision
- Light sensitivity
- Blue tint vision (rare)
Rare but Serious Side Effects
Urgent
Cardiovascular Risks
- Chest pain
- Irregular heartbeat
- Severe drop in blood pressure
Emergency
Other Serious Reactions
- Priapism (prolonged erection)
- Sudden vision loss
- Sudden hearing loss
Who Should Avoid Sildenafil?
- Patients taking nitrates
- Severe heart disease
- Recent stroke or heart attack
- Severe liver impairment
How to Reduce Side Effects
- Use the lowest effective dose
- Avoid heavy alcohol consumption
- Avoid high-fat meals before use
- Follow medical guidance
FAQ
Common effects include headache, flushing, nasal congestion, and mild dizziness.
Alcohol, heavy meals, and certain medications may increase the likelihood or intensity of side effects.
Higher doses may increase the chance of experiencing stronger or more noticeable side effects.
Most side effects are temporary and tend to fade as the medication leaves the system.
Side effects are linked to the active ingredient and are generally similar for both generic and brand versions.
Heavy meals and alcohol may increase dizziness, delay onset, or intensify flushing and headache.
Individual sensitivity, timing, dosage, and interactions with food or alcohol may influence how side effects feel.
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