Background. Propofol is a popular intravenous anesthetic and varieties of formulations were produced from different laboratories.\nThe present study compared efficacy of propofol of different laboratories and different concentrations (1 and 2%) during induction\nof anesthesia. Methods. Seventy-five scheduled surgical patients were randomly allocated into three groups. The patients of group\nD1 received AstraZeneca Diprivan 1% (Osaka, Japan) at a rate of 40mg kgâË?â??1 hâË?â??1. Group M1 was given 1% Maruishi (Maruishi\nPharmaceutical, Osaka, Japan) and group M2 was given 2% formulation at the same rate of propofol. Achieving hypnosis was\ndefined as failure to open their eyes in response to a verbal command and the venous blood sample was withdrawn. Results. The\nhypnotic doses ofM2were significantly larger (D1: 91.4Ã?±30.9, M1: 90.7Ã?±26.7, andM2: 118.4Ã?±40.2mg, resp. (mean Ã?± SD).
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