ABSTRACT The metabolism of Paracetamol has been studied in Isoniazid pretreated albino rats and compared with control. During this study, thirty-five (35) laboratory albino rats were used divided into five (5) groups of seven (7) rats each. Group I served as control and the rats were only administered with 120mg/5ml/kg body weight dose of Paracetamol interperitoneally. However, Groups II-V served as test groups and the members were pretreated with 10mg/kg body weight dose of Isoniazid interpe...