Sildenafil 50 mg tablets is a widely prescribed medication to treat erectile dysfunction (of) in men. This oral medicine belongs to a class of drugs known as phosphodiesterase inhibitors-5 (PDE5). By inhibiting the action of the PDE5 enzyme, the sildenafil enhances the natural process of sexual stimulation, allowing man to achieve and maintain an erection.
When taking sildenafil 50 mg tablets, it is important to follow the prescribed dose and instructions provided by their health professional. Normally, a tablet is taken orally, with or without food, approximately between 30 minutes and 1 hour before sexual activity. The effects of the medication can last up to 4 hours.
Important information:
- The 50 mg compressed of sildenafil is not intended for women or children under 18.
- Do not take sildenafil if you are also using medications with nitrates, since the combination can cause a sudden and significant decrease in blood pressure.
- Report to your doctor of any disease, medication or allergy suffering before starting treatment with sildenafil.
- Rarely, sildenafil can cause side effects such as headache, suffocation, indigestion or visual alterations. If you experience any serious or persistent side effect, look for medical attention immediately.
Name of the medication | Sildenafil 50 mg tablet |
---|---|
Common brand | Viagra |
Class | Phosphodiesterase inhibitor-5 (PDE5) |
Indication | Erectile dysfunction treatment (DE) |
Posology | 50 mg, orally, taken 30 minutes at 1 hour before sexual activity |
Duration of the effect | Up to 4 hours |
Author of the article

Dr.Greenblatt M.
Medical oncologist at the Robert Larner College of Medicine, MD, at the University of Vermont