Factory Supply High Quality Oseltamivir phosphate  Raw powder  CAS.204255-11-8 99% Purity

Oseltamivir phosphate, sold under the brand name Tamiflu, is an antiviral medication used to treat and prevent influenza A and influenza B (flu).

Many medical organizations recommend it in people who have complications or are at high risk of complications within 48 hours of first symptoms of infection.

They recommend it to prevent infection in those at high-risk, but not the general population. The CDC recommends that clinicians use their discretion to treat those at lower risk who present within 48 hours of first symptoms of infection.It is taken by mouth, either as a pill or liquid.


Oseltamivir phosphate is a kind of anti-influenza drugs, under the trade name Tamiflu. Its appearance exhibits as white to yellowish-white powder. It can be divided into type A (alpha) and B (Beta) selective inhibitor of the influenza virus neuraminidase and can prevent the release of virus from infected cells, through inhibiting the activity of the influenza virus neuraminidase, thus achieving the purpose of control of influenza symptoms. Clinically it can be used for treatment of the type A influenza and type B influenza in adults and children of 1 year old or over 1 year old as well as the clinical prevention of influenza A and B in adult and adolescent of 13 year old or over 13 years old.

Oseltamivir phosphate can subject to rapid metabolism into oselatamivr carboxylate after gastrointestinal absorption with 75% of the total oral administrated dose participating in the systemic circulation in the from of oselatamivr carboxylate.

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  1.Our company is a professional raw powder factory in China for over 20  years, all powders are factory directly supplying.

  2. Our products have exported to USA, UK, Germany, Spain,  France, Canada,  Australia,   Norway,Finland,  and many other countries, over 100kgs each month
 
  3.Professional team special for package and shipment and staring on tracking code 24hours for  customs pass guaranteed.      

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