Aspirin+Paracetamol+Codeine is used for pain relief.

Aspirin is a non-steroidal anti-inflammatory drug (NSAID) with anti-platelet action. It works by preventing platelets from sticking together which decreases the formation of harmful blood clots. Paracetamol is an analgesic (pain reliever) and antipyretic (fever reducer). It blocks the release of certain chemical messengers in the brain that are responsible for pain and fever. Codeine is an opioid analgesic ( pain reliever). It works by decreasing the perception of pain by blocking the transmission of pain signals to the brain.

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them