Fast 125 mg Suppository is a rectal dosage form containing 125 mg of paracetamol, manufactured by ACME Laboratories Ltd. Paracetamol is a widely used analgesic and antipyretic agent that works by inhibiting the synthesis of prostaglandins, chemicals in the body that promote inflammation, pain, and fever. Its analgesic properties help alleviate mild to moderate pain, including headaches, toothaches, earaches, body aches, and menstrual cramps. The antipyretic effect aids in reducing fever, making it useful in treating conditions like the common cold, influenza, and post-vaccination fever in children. The rectal formulation is particularly beneficial for patients who are unable to take oral medications due to nausea, vomiting, or difficulty swallowing. Fast 125 mg Suppository is commonly recommended for children aged 1 to 5 years, with a typical dosage of 125–250 mg administered 3–4 times daily, as needed. However, the exact dosage should always be determined by a healthcare professional based on the child's age, weight, and specific health condition. It is important to follow the prescribed dosage and not exceed the recommended amount to avoid potential risks of overdose, which can lead to liver damage. Patients should also be cautious when using other medications containing paracetamol concurrently to prevent accidental overdose. As with any medication, it is essential to consult a healthcare provider before starting any new medication.