Tenofovir disoproxil, trade name Warrad (or other), is a drug used to treat chronic hepatitis B and to prevent and treat HIV infection/AIDS. This drug is a reverse transcriptase inhibitor that inhibits the replication of HIV. Tenofovir disoproxil can be used to prevent HIV infection in high-risk populations. But drugs can't cure HIV/AIDS or hepatitis B.
The drug is in the form of tablets or powders and is usually taken with other antiviral drugs once a day orally. Common side effects include nausea, rash, diarrhea, headache, body aches, depression and weakness. In severe cases, it can cause lactic acidosis and hepatomegaly. No effect of the drug on pregnancy was found in animal experiments.
Tenofovir was patented in 1996 and was approved for use in the United States in 2001. The drug is one of the World Health Organization's list of essential drug standards and is one of the most effective and safest antiviral drugs in the current medical system. In the United States, as of 2015, the drug still has no generic name and costs more than $200 a month. In developing countries, the monthly wholesale cost of the drug is between $3.30 and $29.13.