- Twinrix
Twinrix is a
vaccine againsthepatitis A andhepatitis B . Twinrix is administered over three doses.The name was created because it is a mixture of two earlier vaccines - Havrix, an inactivated-virus
Hepatitis A vaccine , andENGERIX-B , a recombinantHepatitis B vaccine .The CDC reports that clinical trials found the following levels of protection against Hep A and Hep B one month after each dose [ [http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5037a4.htm Notice to Readers: FDA Approval for a Combined Hepatitis A and B Vaccine ] ] :
A: 93.8% 98.8% 99.9%
B: 30.8% 78.2% 98.5%GlaxoSmithKline claims that its studies found 70% of subjects had antibodies against hepatitis B a month after just the first dose, however. [ [http://emc.medicines.org.uk/emc/assets/c/html/displaydoc.asp?documentid=2061#PHARMACOLOGICAL_PROPS Twinrix Adult Vaccine , SPC from the eMC ] ]Although Twinrix has enjoyed much success and has provided benefit for millions, there have been reports concerning the excacerbation of autoimmune hepatitis due to Twinrix. [cite journal |author=Csepregi A, Treiber G, Röcken C, Malfertheiner P |title=Acute exacerbation of autoimmune hepatitis induced by Twinrix |journal=World journal of gastroenterology : WJG |volume=11 |issue=26 |pages=4114–6 |year=2005 |month=July |pmid=15996042 |doi= |url=http://www.wjgnet.com/1007-9327/11/4114.asp]
TWINRIX, HAVRIX and ENGERIX-B are registered
trademark s ofGlaxoSmithKline ; if the same vaccine is available from others, it will have another name.References
External links
* [http://us.gsk.com/products/assets/us_twinrix.pdf#search=%22Twinrix%22 GlaxoSmithKline Prescribing Information]
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