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Recognition Of Date Rape Drug Overdose Key To Proper Treatment SAN FRANCISCO, CA -- June 2, 1998 -- Users of the recreational drug GHB who overdose show distinct clinical characteristics that physicians need to recognise in order to provide proper treatment, according to a new study. "GHB has potentially life-threatening toxic effects, and these patients present in a profound coma with a markedly decreased level of consciousness that is unlike other types of overdose," said Karl Sporer, MD, an assistant professor of medicine at the University of California-San Francisco. "From our experience with a large number of cases, we've gained clinical information that could be useful to physicians in other parts of the country where isolated GHB cases are showing up." He is lead author of a new study on GHB overdoses published in this month’s issue of Annals of Emergency Medicine. The chemical name for GHB is gamma-hydroxybutyrate. The drug is especially popular in San Francisco, Los Angeles and New Orleans, according to Sporer. It often is available in after-hours clubs and rave parties as a white powder that is dissolved in water, resulting in a salty tasting liquid. Users have reported a sense of euphoria and enhanced sexual effects and no hangover. Because a GHB overdose causes the user to lose consciousness, the drug has been implicated as a date rape product. The overdose is characterised by a profound coma along with a normal respiratory rate, but often accompanied by slow heart rate, low body temperature and vomiting. The study team evaluated the medical records of 88 patients who were diagnosed with a GHB overdose in the SFGH emergency department over a three-year period (1993-96). All patients were evaluated using the Glasgow Coma Scale (GCS), a measurement guideline that determines severity of coma based on a series of physiological signs. The scale ranges from three to 15, with 15 being the consciousness level of a normal person. Study findings showed: -- The average age of the study population was 28 years and 61 patients (69 percent) were male. -- None of the patients died, but at least five deaths resulting from GHB overdose have been reported elsewhere. -- More than half the patients had GCS scores of eight or below: 25 (28 percent) had a score of three and 28 (33 percent) had scores ranging from four to eight. (The average GCS score for an alcohol-induced coma is in the seven to eight range, according to Sporer.) Thirty-four patients (39 percent) also had consumed alcohol and 25 (28 percent) had ingested other drugs, most often amphetamines. All patients in both of these groups exhibited extremely low blood pressure. There was no conclusive evidence on the effects of substance abuse interactions related to other symptoms. Patients typically regained consciousness within five hours of ingestion of GHB. The initial GCS score was linked to recovery time, with low scores requiring the longest period. Long-term effects of GHB are unknown. In the 1960s, GHB was used as a medical anesthetic and in the 80s it was sold in health food stores as a product to induce sleep and as a body-building aid. The United States Food and Drug Administration banned over-the-counter sale of the drug several years ago because of concerns about consumer safety. At present, the federal Drug Enforcement Agency is reviewing GHB for addition to its list of controlled substances. E-mail this page to a friend or colleague! To print, use this version