Treat erectile dysfunction /Sildenafil (Viagra) /

 Treat erectile dysfunction /Sildenafil (Viagra) /CAS: 139755-83-2 /WhatsApp:+86-18872220706
Sildenafil description:
Sildenafil, sold as the brand name Viagra among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. Its effectiveness for treating sexual dysfunction in women has not been demonstrated.

Common side effects include headaches and heartburn, as well as flushed skin. Caution is advised in those who have cardiovascular disease. Rare but serious side effects include prolonged erections, which can lead to damage to the penis, and sudden-onset hearing loss. Sildenafil should not be taken by people who take nitrates such as nitroglycerin (glycerin trinitrate), as this may result in a severe and potentially fatal drop in blood pressure.

Sildenafil acts by inhibiting cGMP-specific phosphodiesterase type 5 (phosphodiesterase 5, PDE5), an enzyme that promotes degradation of cGMP, which regulates blood flow in the penis.

Pfizer scientists Andrew Bell, David Brown, and Nicholas Terrett originally discovered sildenafil as a treatment for various cardiovascular disorders.Since becoming available in 1998, sildenafil has been a common treatment for erectile dysfunction; its primary competitors are tadalafil (trade name Cialis) and vardenafil (Levitra).

Sildenafil spec.
Sildenafil (Viagra) (Steroids)
CAS: 139755-83-2
Assay: 99% min.
Molecular formula: C22H30N6O4S
Molecular weight: 474.58
Packing: 1kg net/foil bag, 5kg/drum.
Character: White or almost white crystalline powder, odorless, bitter astringent taste, insoluble in water and ethanol.
Usage: As a cyclic guanosine monophosphate (cGMP) specific phosphodiesterase type 5 (PDE5) selective inhibitor, penile smooth muscle relaxation allows rapid erection. Sildenafil is cheap, is the development and production of low-cost classes available kidney yang-like the perfect material for medicine and health products. pharmaceutical material.