Aceclofenac + Paracetamol + Trypsin Chymotrypsin is a combination of three medicines: Aceclofenac, Paracetamol and Trypsin Chymotrypsin, which relieves pain. Aceclofenac is a non-steroidal anti-inflammatory drug (NSAID) and Paracetamol is an antipyretic (fever reducer). They work by blocking the release of certain chemical messengers in the brain that cause pain and fever. Trypsin Chymotrypsin is a combination of enzymes which break down proteins into smaller fragments, thereby making them available for absorption into the blood. Once absorbed, they increase blood supply in the affected area and reduce swelling.