What is Codeine Phosphate?
Codeine Phosphate is a painkiller used for short-term relief of moderate to severe pain. It can also be prescribed for coughing and diarrhoea. It is not recommended for long-term or chronic pain (Bupa, 2022). Doctors may prescribe it after surgery or an injury. Codeine is a prescription-only medication that contains opioids, which can be addictive. It is also found in combination medicines, such as co-codamol.
Codeine is usually prescribed for people aged 12 and over when other painkillers, like ibuprofen or paracetamol, have not been effective (EMA, 2024).
Video: An overview of Codeine
Watch the video below for a simple explanation of what Codeine is, how it works, dosages, side effects and precautions:
How does Codeine work?
Codeine Phosphate
Codeine belongs to a group of medicines called analgesics, which relieve pain (Mayo Clinic, 2024). As an opioid analgesic, it blocks pain signals and changes the way the body responds to pain. It is used to treat mild to moderate pain (NICE, 2024).
What would a doctor prescribe Codeine for?
Doctors may prescribe Codeine for pain relief, such as after surgery or an injury, and for treating diarrhoea (NHS, 2022).
How does Codeine provide pain relief?
Codeine changes the way the brain and nervous system respond to pain (NHS, 2022). It is sometimes combined with other painkillers, such as paracetamol, for more effective pain relief. One common combination is co-codamol.








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