Codeine/paracetamol, also called codeine/acetaminophen and co-codamol, is a compound analgesic, comprising codeine phosphate and paracetamol (acetaminophen). Co-codamol is a painkiller that combines paracetamol and codeine. It is used for short-term pain relief when paracetamol alone is not enough. Common side effects include feeling sick, constipation, and drowsiness. Do not drink alcohol or take other paracetamol-containing medicines with co-codamol. Co-codamol is a mixture of 2 different painkillers - paracetamol and codeine. It is typically a stronger painkiller than aspirin, ibuprofen, and paracetamol alone, and is often used when those types of painkillers haven’t worked to treat the source of pain. What Co-codamol 30/500 Tablets are and what they are used for. 2. What you need to know before you take Co-codamol 30/500 Tablets. 3. How to take Co-codamol 30/500 Tablets. 4. Possible side effects. 5. How to store Co-codamol 30/500 Tablets. 6. Contents of the pack and other information. Co-codamol contains two different medicines called codeine phosphate and paracetamol. It belongs to a group of medicines called analgesics (painkillers) and is used to treat severe pain. Co-codamol is used as an analgesic for the treatment of mild to moderate pain including headache, neuralgia, toothache, sore throat, period pains and the symptomatic relief of influenza, feverishness and feverish colds, especially where aches and pains are present. Find out how co-codamol treats pain in adults and how to take it. NHS medicines information on co-codamol for adults – what it's used for, side effects, dosage and who can take it.