Fluvir is the brand name of a drug, generic oseltamavir manufactured and marketed by Hetero Drugs

Hetero Drugs

Hetero Drugs Limited is an Indian Pharmaceutical Company established in the year 1993. Hetero Drugs Limited founded by Dr. B. Partha Saradhi Reddy Phd., a scientist and expert in chemistry...

 in India and developing countries. Hetero produces the drug under a 2005 licence from Hoffmann–La Roche. The drug is known worldwide as Tamiflu, which is the name that Roche uses to market it.

The drug has been shown to be effective against avian flu

Avian flu

Avian influenza, sometimes avian flu, and commonly bird flu, refers to "influenza caused by viruses adapted to birds." Of the greatest concern is highly pathogenic avian influenza ....

 (bird flu); It is presently also prescribed against swine flu

Swine flu

Swine influenza, also called pig influenza, swine flu, hog flu and pig flu, is an infection by any one of several types of swine influenza virus. Swine influenza virus or S-OIV is any strain of the influenza family of viruses that is endemic in pigs...

.