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Article
March 20, 1981

Successful Treatment of Naturally Occurring Influenza A/USSR/77 H1N1

Author Affiliations

From the Infectious Disease Unit, University of Rochester School of Medicine and Dentistry, Rochester, NY. Dr Van Voris is presently with the Department of Medicine, Section of Infectious Diseases, Marshall University School of Medicine, Huntington, WVa. Dr Hayden is currently with the Departments of Medicine and Pathology, Division of Epidemiology and Virology, University of Virginia School of Medicine, Charlottesville.

JAMA. 1981;245(11):1128-1131. doi:10.1001/jama.1981.03310360020016
Abstract

Forty-five university students with proved influenza A/USSR/77 H1N1 infection were randomly treated with either amantadine hydrochloride (14 students), rimantadine hydrochloride (19 students), or placebo (12 students). By 48 hours after initiation of therapy, amantadine and rimantadine recipients had significantly less fever and greater improvement compared with subjects given the placebo. Minor reversible CNS side effects at the end of the five-day course of therapy were observed in one third of the amantadine-treated subjects. However, both amantadine and rimantadine recipients returned to classes earlier and shed smaller amounts of virus than placebo recipients. Thus, both drugs exerted a notable therapeutic effect. Hence, during an influenza outbreak, five days of empirical therapy with amantadine or rimantadine for persons with an influenza-like syndrome should ameliorate clinical symptoms and might decrease spread of virus.

(JAMA 1981;245:1128-1131)

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