Codeine Phosphate 30mg Tablets are a pharmaceutical formulation containing codeine phosphate, a naturally occurring alkaloid derived from the opium poppy. This medication is indicated for the symptomatic relief of mild to moderate acute pain that has not responded adequately to non-opioid analgesics such as paracetamol or ibuprofen.
Codeine phosphate exerts its analgesic effects through conversion to morphine in the liver via the cytochrome P450 enzyme system. This conversion provides effective pain relief through mu-opioid receptor agonism, altering pain perception in the central nervous system. The 30mg strength is considered a standard therapeutic dose that balances analgesic efficacy with a manageable side effect profile for most patients.
For individuals requiring effective pain control following dental procedures, minor surgical interventions, or injury-related discomfort, Codeine Phosphate 30mg Tablets offer a well-established treatment option with decades of clinical use supporting their safety and effectiveness.
Key Product Features
| Feature | Specification |
|---|---|
| Active Ingredient | Codeine Phosphate |
| Strength | 30mg |
| Drug Class | Opioid Analgesic |
| Schedule | Schedule II or III Controlled Substance |
| Administration | Oral |
| Onset of Action | 30–45 minutes |
| Peak Effect | 60–90 minutes |
| Duration of Action | 4–6 hours |
Important Safety Information
Codeine is an opioid analgesic and should be used only under the supervision of a qualified healthcare provider. Codeine Phosphate 30mg Tablets are intended for patients with mild to moderate pain requiring short-term pharmacological intervention.
Critical Warnings:
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Respiratory Depression: Like all opioids, codeine can cause life-threatening breathing problems, particularly in patients with underlying respiratory conditions or when combined with other CNS depressants.
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Rapid Metabolizers: A small percentage of the population are ultra-rapid metabolizers of codeine, leading to higher-than-expected morphine levels. This can result in severe respiratory depression and potentially fatal outcomes, especially in children and breastfeeding infants.
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Gastrointestinal Effects: Codeine can cause constipation and other gastrointestinal disturbances that may persist with continued use.
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Dependence and Withdrawal: Prolonged use of codeine can lead to physical and psychological dependence. Discontinuation should be done gradually under medical supervision.
Common Side Effects:
Patients may experience constipation, nausea, vomiting, drowsiness, headache, and dizziness.
Dosing Considerations
The 30mg strength is a standard dose typically prescribed for mild to moderate pain that has not responded to non-opioid alternatives.
General Dosing Guidelines:
| Parameter | Recommendation |
|---|---|
| Standard Adult Dose | 30mg every 4–6 hours as needed |
| Maximum Daily Dose | 240mg (for adults without pre-existing conditions) |
| Maximum for Patients over 65 | 120mg per day |
| Duration | Short-term use only (typically 3–7 days) |
Administration and Storage Instructions
Codeine Phosphate 30mg Tablets should be taken exactly as prescribed. Tablets should be swallowed whole with water.
Administration Steps:
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Swallow the tablet whole with a full glass of water.
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Take with or without food as directed.
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Take only when pain occurs or as scheduled by your prescriber.
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Do not take more than the prescribed dose or exceed the maximum daily limit.
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Do not use for longer than the prescribed duration unless directed by a healthcare provider.
Storage:
Store at room temperature (15–30°C) away from light and moisture. Keep out of reach of children and pets. Store in the original container until use.
Disposal:
Unused or expired medication should be returned to a pharmacy take-back program. Do not flush down the toilet unless specifically instructed.
Frequently Asked Questions
Q: Is 30 mg of codeine very strong?
A: 30mg of codeine is considered a moderate-strength dose for an oral opioid. It is not as potent as stronger opioids such as morphine or oxycodone, but it provides effective relief for mild to moderate pain that has not responded to non-opioid options. For context, 30mg of codeine is approximately equivalent to 3mg to 5mg of morphine in analgesic effect.
Q: Does codeine phosphate 30mg make you sleepy?
A: Drowsiness is a common side effect of codeine, though it varies between individuals. The 30mg dose is less likely to cause pronounced sedation compared to higher doses or stronger opioids, but patients should still be cautious. It is recommended to avoid driving or operating heavy machinery until you understand how the medication affects you.
Q: Can you buy 30mg codeine phosphate over the counter?
A: No. In the vast majority of countries, codeine phosphate 30mg is a prescription-only medication (POM) and cannot be purchased over the counter. Some countries allow lower-strength codeine combinations (typically 8mg or 12.8mg with paracetamol or ibuprofen) to be sold with pharmacy supervision, but the 30mg strength requires a valid prescription from a licensed healthcare provider.




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