Natural Steroid Hormones , Anti Estrogen Steroids Sildenafil Citrate / Viagra 171599-83-0 - 139755-83-2
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Natural Steroid Hormones , Anti Estrogen Steroids Sildenafil Citrate / Viagra 171599-83-0
Basic Info:
Sildenafil Citrate
Synonyms: VIAGRA; Sildenafil; Viagra
CAS number: 139755-83-2
MF: C28H38N6O11S
MW: 666.7
Melting point: 187-189°C
Chemical Properties: White Solid powder
Usage: An orally active selective type 5 cGMP phosphodiesterase inhibitor
Dosage: As with all prescription drugs, proper dosage is at the discretion of a licensed medical doctor. The dose of sildenafil for erectile dysfunction is 25 mg to 100 mg taken not more than once per day between 30 minutes and 4 hours prior to sexual intercourse.
Product Description:
In 16 separate 4-24 week trials of men (over 18 years old) who suffered from impotence for longer than 6 months, dosages between 10-200 mgs were administered. Significant improvements in erectile function, including frequency of penetration as well as erection duration post penetration, were reported with Sildenfil treatment compared to the placebo group.
Erections were improved in 72% of the Viagra group verses 18% of the placebo group. In all cases effects were dependant upon dosage and improvement was the greatest when dosage exceeded 100 mgs. Responses were decreased by 40-60% in patients suffering from diabetes and prostatectomy, respectively. Withdrawal rates were less than 5% related to negative side effects and limited response rates.
Vardenafil& acute;s indications and contra-indications are the same as with other PDE5 inhibitors; it is closely related in function to sildenafil citrate (Viagra) and tadalafil (Cialis). Sildenafil Citrate is solely active in relaxing muscles and increasing blood flow to the heart, lungs and penis due to PDE-5, yet vasodilation is not increased in other parts of the body.
Application:
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).
tadalafil& acute;s pharmacologic distinction
Guangzhou Kafen Biotech Co., Ltd.
Address: No. 128, Hanxing East Rd, Zhongcun, Panyu District,, Guangzhou, GuangDong, China, 511495
Tel: +8618022403273
Guangzhou Kafen Biotech Co., Ltd is a high-tech and professional company founded in 2002, which specialized in developing, manufacturing, distributing steroid hormone powders and intermediates. We have been devoted in R&D, production and marketing steroid hormone and pharmaceutical raw materials.
With advanced production technology and equipment, strong technical force, first-class laboratory and inspection equipment. Kafen has developed into a professional factory manufacturing anabolic steroid powders with several years'efforts and contribution of experienced technicians in different areas. Company affiliated factory has advanced production equipment and plants, perfect quality assurance and control system, whole set of High Pressure Liquid Chromatography/Gas Chromatography/UV Spectrophotometer to conduct effective product analysis and monitoring. Company factory has passed ISO9001 quality system certification and international KOSHER certification.
Now, we continues its high speed development and contributes a lot to its new products' R&D and quality improvement. Under the credibility and win-win principle, kafen biotech will devote to culture innovation to provide excellent products and best service to our customers.
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