Ace 120 mg/5 ml Syrup is an analgesic and antipyretic medication manufactured by Square Pharmaceuticals Ltd. in Bangladesh. It contains Paracetamol (Acetaminophen) as its active ingredient. Paracetamol works by inhibiting the synthesis of prostaglandins in the central nervous system, thereby reducing pain and fever. Unlike NSAIDs, paracetamol has minimal anti-inflammatory effects.