viagra

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SildenafilCitrate / Viagra / Revatio
Cas no: 139755-83-2
Molecular formula: C22H30N6O4S
Molecular weight: 474.6 g/mol
Appearance: White or Almost White Crystalline Powder
Identification: IR,UV
Solubility : Soluble in methanol
Purity(by HPLC): 99.0%min

 

Clear
SKU: N/A Category:

Description

Buy viagra online

Buy viagra online.Sildenafil, marketed under the trademark name Viagra to name a few, is a medication used to deal with erectile dysfunction and lung arterial hypertension.It is vague if it works for dealing with sex-related dysfunction in women.It is taken by mouth or shot into a blood vessel. Beginning is generally within 20 mins and lasts for about 2 hrs.

Common side effects consist of migraines, heartburn, and purged skin. [8] Care is advised in those with cardio disease.Rare yet significant negative effects include a long term erection that can lead to harm to the penis, vision problems, and also hearing loss.Sildenafil should not be taken by individuals on nitrates such as nitroglycerin (glycerin trinitrate), as this may lead to a severe drop in high blood pressure.

Sildenafil acts by blocking phosphodiesterase 5 (PDE5), an enzyme that advertises malfunction of cGMP, which regulates blood circulation in the penis. [8] It needs sex-related stimulation, nonetheless, to function. [8] It likewise results in extension of the capillary in the lungs.

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Pfizer originally discovered the medicine in 1989 while trying to find a treatment for heart-related chest pain. It was approved for medical use in the USA and also in the European Union in 1998. In 2017, it was the 217th most commonly recommended medication in the USA, with more than two million prescriptions.In 2017, it appeared as a generic medicine after final licenses by Pfizer ended. In the United Kingdom, it is readily available over the counter.Most of the Active Drug Active Ingredient (API) in Sildenafil, Sildenafil citrate, is created in Pfizer’s Ringaskiddy facility, Region Cork, which is Pfizer’s biggest manufacturing facility beyond the United States.

Unfavorable effects

In clinical trials, the most usual unfavorable results of sildenafil usage consisted of migraine, flushing, acid indigestion, nasal congestion, and also impaired vision, consisting of photophobia and also blurred vision.Some sildenafil users have actually suffered seeing everything tinted blue (cyanopsia). [22] Some experienced blurriness and loss of peripheral vision. In July 2005, the UNITED STATE Fda (FDA) located that sildenafil might cause vision problems in uncommon cases, and a variety of research studies have connected sildenafil use with non-arteritic former ischemic optic neuropathy.Buy viagra online

Rare however significant unfavorable effects found via postmarketing monitoring include prolonged erections, extreme low blood pressure, coronary infarction (cardiovascular disease), ventricular arrhythmias, stroke, increased intraocular stress, and also sudden hearing loss In October 2007, the FDA revealed that the labeling for all PDE5 inhibitors, consisting of sildenafil, required a much more popular warning of the potential risk of unexpected hearing loss.Contact us

Additional information

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Powder 5g, Powder 25g, Powder 50g, Powder 100g, Powder 250g, Powder 500g, Powder 1000g

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