Tamiflu (Oseltamivir Phosphate) for H1N1 Swine Flu, Avian Flu, Influenza A & B

Pharmaceutical Information

Ian C. Langtree - Content Writer/Editor for Disabled World
Published: 2009/04/27 - Updated: 2024/04/20
Publication Type: Informative
Contents: Summary - Introduction - Main - Related

Synopsis: Tamiflu an oral anti-viral drug for treatment of Influenza A and Influenza B including the swine flu H1N1 virus. Tamiflu should be started as soon as possible after a child develops flu symptoms, and at least within two days, or as soon as possible after you have been exposed to someone with the flu, if you have not had a flu shot. Oseltamivir was widely used during the H5N1 avian influenza epidemic in Southeast Asia in 2005. In response to the epidemic, various governments - including those of the United Kingdom, Canada, United States and Australia - stockpiled quantities of oseltamivir in preparation for a possible pandemic.

Introduction

The American FDA has approved Tamiflu an oral anti-viral drug for the treatment of uncomplicated influenza in patients one year and older whose flu symptoms have not lasted more than two days. Tamiflu (Oseltamivir phosphate) was developed by US-based Gilead Sciences and is currently marketed by Hoffmann-La Roche (Roche) under the trade name Tamiflu.

Main Digest

Tamiflu is an antiviral drug that is used in the treatment and prophylaxis of both Influenza virus A and Influenza virus B infection. Like zanamivir, Tamiflu is a neuraminidase inhibitor. It acts as a transition-state analogue inhibitor of influenza neuraminidase, preventing progeny virions from emerging from infected cells.

With increasing fears about the potential for a new swine flu pandemic, Tamiflu has received substantial media attention. Governments, corporations, and even some private individuals are stockpiling the drug. Production is currently sufficient to meet the demand only for seasonal influenza and for government stockpiling. It is possible that shortages will recur in the event of an actual swine influenza pandemic.

Oseltamivir was widely used during the H5N1 avian influenza epidemic in Southeast Asia in 2005. In response to the epidemic, various governments - including those of the United Kingdom, Canada, United States and Australia - stockpiled quantities of oseltamivir in preparation for a possible pandemic. Though large, the quantities stockpiled would not have been sufficient to protect the entire population of these countries. It is possible that shortages could again be encountered if a global swine flu pandemic actually arises.

Quick Facts on Tamiflu

Dosage of Tamiflu

Oseltamivir is marketed by Roche under the trade name Tamiflu, as capsules (containing oseltamivir phosphate 98.5 mg equivalent to oseltamivir 75 mg) and as a powder for oral suspension (oseltamivir phosphate equivalent to oseltamivir 12 mg/mL).

For Treatment of Flu

Adults and teens over 13 take 75mg Twice a day for 5 days. The dosage for younger children who are 1 year and older depends on their weight:

For Prevention of Flu

Side Effects

The most common side effects of Tamiflu are nausea, vomiting, diarrhea, and conjunctivitis (pinkeye). Sometimes people report getting headaches after taking Tamiflu. There are concerns that oseltamivir may cause dangerous psychological, neuropsychiatric side effects including self harm in some users. These dangerous side effects occur more commonly in children than in adults.

Related Publications

Share This Information To:
𝕏.com Facebook Reddit

Page Information, Citing and Disclaimer

Disabled World is an independent disability community founded in 2004 to provide news and information to people with disabilities, seniors, their family and carers. We'd love for you to follow and connect with us on social media!

Cite This Page (APA): Langtree, I. C. (2009, April 27 - Last revised: 2024, April 20). Tamiflu (Oseltamivir Phosphate) for H1N1 Swine Flu, Avian Flu, Influenza A & B. Disabled World. Retrieved July 13, 2024 from www.disabled-world.com/medical/pharmaceutical/tamiflu.php

Permalink: <a href="https://www.disabled-world.com/medical/pharmaceutical/tamiflu.php">Tamiflu (Oseltamivir Phosphate) for H1N1 Swine Flu, Avian Flu, Influenza A & B</a>: Tamiflu an oral anti-viral drug for treatment of Influenza A and Influenza B including the swine flu H1N1 virus.

Disabled World provides general information only. Materials presented are never meant to substitute for qualified medical care. Any 3rd party offering or advertising does not constitute an endorsement.