Codeine Sant tablets 30 mg are tablets containing 30 mg of Codeine, an opioid (narcotic) painkiller. “Sant” is the manufacturer or brand name in some countries; the active ingredient is still codeine.
They’re commonly prescribed for:
- Moderate pain that isn’t relieved by medicines like Paracetamol or Ibuprofen alone.
- Sometimes to suppress coughing (at lower doses in certain formulations).
- Occasionally for severe diarrhea, though this is less common.
How do they work?
Codeine works by attaching to opioid receptors in the brain and spinal cord. This:
- Reduces how strongly your body perceives pain.
- Changes your emotional response to pain, making it feel less distressing.
- Can also cause relaxation or drowsiness.
Codeine itself is relatively weak. Your liver converts some of it into Morphine, which provides much of the pain-relieving effect. Because people convert codeine at different rates, some find it very effective while others get little pain relief.
How long does it take to work?
- Starts working in 30–60 minutes.
- Pain relief usually lasts 4–6 hours.
Common side effects
- Drowsiness or sleepiness
- Constipation
- Nausea or vomiting
- Dizziness
- Dry mouth
Serious risks
Because codeine is an opioid, it can:
- Slow your breathing, especially if you take too much or combine it with alcohol or sedatives.
- Cause dependence if taken regularly over time.
- Lead to withdrawal symptoms if stopped suddenly after prolonged use.
You should avoid drinking alcohol while taking codeine, and be cautious about driving or operating machinery until you know how it affects you.
If you’ve been prescribed Codeine Sant 30 mg, take it exactly as directed by your prescriber. If it doesn’t relieve your pain, don’t increase the dose on your own—contact the prescriber, as taking more can be dangerous.
If you’re asking because you’ve just been prescribed it, I can also explain:
- how to take it safely,
- what medicines you should avoid while on it, or
- whether it’s appropriate for your specific type of pain.





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