Antiviral Drugs

Antiviral drugs have now been developed against influenza, herpes, human immunodeficiency viruses, hepatitis C and hepatitis B. Drug resistance is a practical problem and is stimulating the wider search for new drugs using compound libraries, molecular technology and particularly X-ray crystallography whilst drug combinations are used in acquired immune deficiency syndrome (AIDS) patients and hepatitis to reduce the opportunities for virus mutations. The threat of a global outbreak of chicken influenza (H5N1) has led to government stockpiling of the new antiflu drugs, the neuraminidase inhibitors. Pegylated and other interferons are used in drug combinations with hepatitis B and C patients.

Keywords: antivirals; influenza; HIV; herpes; hepatitis

Figure 1. Ribbon drawing of influenza A neuraminidase (NA) enzyme. (a) Normal influenza NA and (b) oseltamivir inhibitor bound to the active site of the NA.
Figure 2. Space-filling model of influenza A NA enzyme with zanamivir inhibitor bound at the active site.
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Oxford, John S(Sep 2008) Antiviral Drugs. In: eLS. John Wiley & Sons Ltd, Chichester. http://www.els.net [doi: 10.1002/9780470015902.a0000410.pub2]