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






