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
Headache, flushing, nasal congestion, and mild dizziness are the most common effects.
Most are mild and temporary. Serious side effects are rare but require medical attention.
Yes. Using lower doses, avoiding alcohol, and taking it on an empty stomach can help reduce side effects.
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