In terms of antimicrobial drugs associated with hepatotoxicity, in 2007 the US Food and Drug Administration (FDA) issued a warning about telithromycin hepatotoxicity. The incidence of hepatotoxicity in antituberculosis therapy ranges from 2% to 28%, and risk factors include the elderly, human immunodeficiency virus (HIV) infection, slow acetylation status, and females. Other authors have studied isoniazid-related liver failure in children. 0.2% of all pediatric liver transplant patients had isoniazid-related liver failure, and 14% of all liver transplant patients had isoniazid as the cause of their drug-associated liver disease. Other drugs that more frequently cause drug-associated liver failure include: hypoglycemic drugs, antineoplastic drugs, antipsychotic drugs (paroxetine is the most frequently reported, and nefazodone is the most severe), antihyperthyroid drugs, and antipyretic and analgesic drugs. Nutritional additives that are over-the-counter drugs may also be hepatotoxic, and green tea extract has been reported to cause acute liver damage. In recent years there have been a number of reports of hepatotoxicity of Herbalife (a weight loss supplement in the United States). There are other herbs: kava leaf and root extracts, a certain Chai Hu and Fu Ling compound, true aloe vera, Teucrium polium L (a stonecrop), etc.