Oseltamivir, 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 is used for the prevention and treatment of influenza caused by influenza A and B viruses.It is on the World Health
Organization's List of Essential Medicines, a list of the most important medications needed in a basic health system.Oseltamivir's
risk-benefit ratio is controversial.

High risk people
The United States' Centers for Disease Control and Prevention (CDC), European Centre for Disease Prevention and Control (ECDC),
Public Health England and the American Academy of Pediatrics (AAP) recommend the use of oseltamivir for people who have
complications or are at high risk for complications.This includes those who are hospitalized, young children, those over the age
of 65, people with other significant health problems, those who are pregnant, and Indigenous peoples of the Americas among others.
The Infectious Disease Society of America takes the same position as the CDC.
 

Common adverse drug reactions (ADRs) associated with oseltamivir therapy (occurring in over 1 percent of people) include nausea and vomiting. In adults, oseltamivir increased the risk of nausea for which the number needed to harm was 28 and for vomiting was 22. So, for every 22 adult people on oseltamivir one experienced vomiting. In the treatment of children, oseltamivir also induced vomiting. The number needed to harm was 19. So, for every 19 children on oseltamivir one experienced vomiting. In prevention there were more headaches, kidney, and psychiatric events. Oseltamivir's effect on the heart is unclear: it may reduce cardiac symptoms, but may also induce serious heart rhythm problems.

Postmarketing reports include liver inflammation and elevated liver enzymes, rash, allergic reactions including anaphylaxis, toxic
epidermal necrolysis, abnormal heart rhythms, seizure, confusion, aggravation of diabetes, and haemorrhagic colitis and
Stevens-Johnson syndrome.

The U.S. and EU package inserts for oseltamivir contain a warning of psychiatric effects observed in post-marketing surveillance.
The frequency of these appears to be low and a causative role for oseltamivir has not been established.The 2014 Cochrane review found a dose-response effect on psychiatric events. In trials of prevention in adults one person was harmed for every 94
treated.Neither of the two most cited published treatment trials of oseltamivir reported any drug-attributable serious adverse
events.

It is pregnancy category C in the United States and category B in Australia, meaning that it has been taken by a small number of
women without signs of problems and in animal studies it looks safe. Dose adjustment may be needed in those with kidney problems.

Shanghai HuiRui Chemical Technology Co., Ltd.(HuiCHem) is a high-tech enterprise engaged in the area of health care & nutrition. HuiChem have been working closely with our customers we deliver products and solutions that create value and competitive advantage while positively impacting the world we live in, as well as attentive service for the purpose to meet the demand of customers, spare no effort to create value for customers.

HuiChem is now headquartered in Shanghai, and has offices in Jiangsu, Shandong, Anhui and HongKong. Its Shanghai headquarters has nearly 2000 square meters of operation premises, including a total of over 1500 square meters of synthesis laboratories and more than 200 square meters of analysis laboratories (equipped with AAS, LC-MS, FTIR, NMR and other basic test equipment). We have set up two pilot scale laboratories, which lay speedy and stable foundation for process amplification and production of superior products. Besides, we have partner factories that are responsible for the commercial production in Jiangsu Province and Shandong Province. All of those, ensuring growing customer demand and smooth commercial production. We have been certified ISO9001:2008 and ISO14001:2004. The company has established good cooperative relationships with Shanghai Institute of Organic Chemistry of Chinese Academy of Sciences(SIOC), Shanghai Institute of Materia Medica (SIMM), University of Science and Technology of China and Fudan University, and carried out a variety of creative R&D cooperation activities. 

We attach great importance to technical innovation and follow the latest dynamic of discovery and development to research and develop new products relying on advanced technology of synthetic chemistry, medicinal chemistry, biochemistry and analytical chemistry. We also pay attention to introduce and foster professional and technical personnel, the company has a group of vigorous and well-trained employees, and strong technical R&D forces. HuiChem has established a new system covering research and development, production and sales. Based on advanced equipment and strict management, always pursue the "open, inclusion, innovation, sharing" business philosophy, creating a win-win cooperation platform.
Everything originates from innovation. HuiChem combines the power of science and the passion of innovation. We believe to connect chemistry and innovation with the principles of sustainability to create a healthy life.

1. Faster delivery: Sample order in stock and 3-7 days for bulk production.
2. We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS. Or you also can choose your own shipping forwarder.
3. After-Sale Service: 
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2)60 Days Warranty of quality of goods.

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