Viagra
Specifications:
- Active Ingredient: Sildenafil Citrate
- Dosage Forms: Oral tablets
- Available Strengths: 25 mg, 50 mg, 100 mg
- Administration: Taken orally, with or without food
- Onset of Action: 30 minutes to 1 hour
- Duration of Effect: Approximately 4-5 hours
- Prescription Required: Yes
- Manufacturer: Pfizer Inc.
- FDA Approval: March 27, 1998