The document summarizes a study that evaluated the antipyretic (fever-reducing) activity of methanolic extracts of the root and leaves of Morinda angustifolia Roxb. in mice. Yeast was injected in mice to induce pyrexia (fever). The mice were divided into groups that received extracts of the root or leaves at 500 mg/kg, paracetamol (standard drug) at 150 mg/kg, or a control vehicle. Rectal temperatures were measured before and for 3 hours after treatment. Both extracts and paracetamol significantly reduced fever compared to the control and showed maximum reduction within 2 hours, indicating antipyretic effects comparable to paracetamol. The ant