Co-codamol is a pain killer containing codeine and paracetamol. Unlike paracetamol, ibuprofen or aspirin, co-codamol is rarely accessed 'over-the-counter'; it is prescribed when the relief provided by these household pain killers is not sufficient. Backache, sciatica, toothache, headaches and period pains are among the forms of acute pain which co-codamol can be used to treat. Side effects should be guarded against with caution. These include dizziness, drowsiness, confusion, constipation, nausea and vomiting. A safe dosage of co-codamol for one person could be dangerous for another.