Sildenafil Tablets (generic Viagra)
1. What is Sildenafil?
Brand name: Viagra
Mechanism of action: Sildenafil is a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5). The physiologic mechanism of erection of the penis involves release of nitric oxide (NO) in the corpus cavernosum during sexual stimulation. Nitric oxide then activates the enzyme guanylate cyclase, which results in increased levels of cGMP. Cyclic guanosine monophosphate causes smooth muscle relaxation in the corpus cavernosum thereby allowing inflow of blood
2. What does Sildenafil do for erectile dysfunction?
Sildenafil is rapidly absorbed after oral administration. It helps increase erection duration during intercourse.
3. Is Sildenafil FDA approved?
Yes, Sildenafil is FDA approved for erectile dysfunction.
4. Is Sildenafil safe to use?
Yes, but there are side effects for people with certain medical conditions. You should not use Sildenafil if you take any of the following types of medications: nitrates, blood pressure, cardiac, heart rate, HIV, antifungal
You should not use Sildenafil if you have any of the following medical conditions: coronary artery disease, aortic stenosis, structural heart disease, cardiac abnormal rhythms, heart failure, low blood pressure, stroke, priapism, sickle cell disease, or HIV.
Side effects include:
- Visual disturbance
- Low blood pressure
- Heart attack
- Abnormal heart rhythm