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Viagra Sildenafil Citrate Male Enhancement
Viagra Sildenafil Citrate Male Enhancement

Viagra Sildenafil Citrate Male Enhancement

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Viagra(Sildenafil Citrate)


Contact : Mr.Thyen

Email us at zhangyinglong@ycphar.com

Whatsapp : +86 180 3817 6818



Viagra(Sildenafil Citrate) was initially designed for hypertension and angina pectoris.

Viagra(Sildenafil Citrate)'s main competitors are Cialis (tadalafil) and Levitra (vardenafil).

Side effects include headaches, hearing loss, impaired vision, increased intraocular pressure and dyspepsia.

Viagra(Sildenafil Citrate) pills are blue and diamond-shaped.

Individuals with kidney disease should not take Viagra(Sildenafil Citrate).

Some athletes take Revatio in the belief that it enhances their performance.

Viagra(Sildenafil Citrate) works by inhibiting the enzyme cGMP-specific phosphodiesterase type 5.

Viagra(Sildenafil Citrate) was designed by Pfizer in Kent, England.

Some people use Viagra(Sildenafil Citrate) recreationally, although it is not thought to have any benefit in people without penile dysfunction.


What is Viagra(Sildenafil Citrate)?

Viagra(Sildenafil Citrate) is the brand name forsildenafil citrate, and is used for treating erectile dysfunction and pulmonary arterial hypertension. Originally developed by scientists in Great Britain, it was brought onto the market by Pfizer Inc., a US pharmaceutical company. Viagra(Sildenafil Citrate) is also sold under brand nameRevatio.

Viagra(Sildenafil Citrate) was initially designed to help lower blood pressure but is now typically used to treat erectile dysfunction.


Quick Details

Product name

Sildenafil Citrate

Synonyms

Sildenafil citrate,viagra

Category

Sex Steroid Hormones

CAS NO

171599-83-0

Appearance

White Solid

Assay

98%

Molecular formula

C28H38N6O11S

Molecular weight

666.7

Molecular structure

 img00705.JPG

Delivery time

Within 24 hours upon receipt of payment

Delivery

EMS, DHL, TNT, FedEx, UPS

Usage

An orally active selective type 5 cGMP phosphodiesterase inhibitor
Biological Activity :Orally active, potent inhibitor of phosphodiesterase 5 (PDE5)  (IC 50 = 4 nM). Enhances nitric oxide-dependent relaxation of human corpus cavernosum in vitro.

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Applications

Sildenafil citrate, sold as Viagra, Revatio and under various other trade names, is a drug used to treat erectile dysfunction and pulmonary arterial hypertension (PAH). It was originally discovered by Pfizer scientists Andrew Bell, David Brown, and Nicholas Terrett.

The primary indication of sildenafil is treatment of erectile dysfunction (inability to sustain a satisfactory erection to complete intercourse). Its use is now standard treatment for erectile dysfunction in all settings, including diabetes.

In clinical trials, the most common adverse effects of sildenafil use included headache, flushing, dyspepsia, nasal congestion and impaired vision, including photophobia and blurred vision.Some sildenafil users have complained of seeing everything tinted blue (cyanopsia).Some complained of blurriness and loss of peripheral vision. In July 2005, the FDA found that sildenafil could lead to vision impairment in rare cases and a number of studies have linked sildenafil use with nonarteritic anterior ischemic optic neuropathy.

Rare but serious adverse effects found through postmarketing surveillance include priapism, severe hypotension, myocardial infarction (heart attack), ventricular arrhythmias, stroke, increased intraocular pressure, and sudden hearing loss. As a result of these postmarketing reports, in October 2007, the FDA announced that the labeling for all PDE5 inhibitors, including sildenafil, required a more prominent warning of the potential risk of sudden hearing loss.


Certificate Of Analysis

Product name

Sildenafil Citrate

Appearance

White crystalline powder

Loss on drying

≤1.0%

0.3%

Acidity

3.0-5.0

4.1

Residue on ignition

≤0.1%

0.05%

Heavy metals

≤20ppm

Complies

Relevant impurity

≤0.5%

0.02%

Methanol

≤0.3%

0.025%

Methylene dichloride

≤0.06%

0.013%

N,N-Dimethyl formamide

≤0.088%

Not detected

Assay(on dried basis)

≥98%

98.4%



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