- Sildenafil was originally developed by Pfizer under Viagra.
- OTC versions are often lower in dosage compared to prescription drugs.
- Legal regulations restrict OTC sale in most countries.
- Symptoms of overdose include dizziness, vision changes, and prolonged erections.
- Combining sildenafil with alcohol can reduce its effectiveness.
- Patients should avoid grapefruit juice while using sildenafil.
- Food intake can delay the onset of sildenafil's effects.
- Use sildenafil only if recommended by a healthcare provider.
- Some countries legally sell sildenafil OTC with specific restrictions.
- Always verify the credibility of online pharmacies.
- Consult a doctor before switching to OTC sildenafil.
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