Description
Codeine Phosphate 30mg Tablets (25/50/100 Tabs) – Buy Online in the UK
Codeine Phosphate 30mg Tablets are a prescription-only opioid medicine used in the UK for the short-term relief of moderate pain when standard painkillers such as paracetamol or ibuprofen alone are not effective. Codeine works by acting on the central nervous system to reduce the perception of pain.
In certain cases, Codeine Phosphate may also be prescribed to suppress persistent dry coughs or to help manage prolonged diarrhoea, when other treatments have not provided sufficient relief.
How Codeine Phosphate Works
Codeine is an opioid analgesic that works by:
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Binding to opioid receptors in the brain and spinal cord
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Reducing the way pain signals are transmitted
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Suppressing the cough reflex in the brain when used for cough control
This dual action makes Codeine effective for both pain relief and symptom control in specific medical situations.
How to Take Codeine Phosphate 30mg Tablets
Important: Always take Codeine Phosphate exactly as prescribed by a healthcare professional.
General guidance (UK):
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Usually taken every 4–6 hours, if required
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Swallow tablets whole with water
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Can be taken with or without food
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Intended for short-term use only
Do not exceed the prescribed dose or use for longer than advised, as prolonged use increases the risk of dependence.
Codeine and Alcohol
Alcohol can increase the sedative effects of codeine and may make you feel unusually sleepy, dizzy or less alert. Combining alcohol with opioid medicines can also increase the risk of serious breathing problems. It is best to avoid alcohol while taking codeine unless your doctor or pharmacist has specifically advised otherwise.
Codeine and Other Medicines
Tell your doctor or pharmacist about all medicines, supplements and herbal products you are taking before using codeine. Some medicines can interact with codeine or increase its effects.
Particular caution may be required with medicines that cause drowsiness, medicines that affect the nervous system, and certain antidepressants or other prescription medicines. Do not start, stop or change another medicine while taking codeine without discussing it with a healthcare professional.
Always follow the instructions provided with your prescription and patient information leaflet.
Driving and Codeine
Codeine may cause drowsiness, dizziness, blurred vision, reduced concentration or slower reactions in some people. These effects can make driving or operating machinery unsafe.
Do not drive, cycle or operate machinery if you feel sleepy, dizzy, confused or otherwise affected after taking codeine. Make sure you understand how the medicine affects you before undertaking activities that require full attention.
Dependence and Withdrawal
Codeine is an opioid medicine and repeated or prolonged use can lead to tolerance, dependence or addiction. The risk can increase when codeine is taken for longer than prescribed or at higher doses than recommended.
If you have been taking codeine regularly, do not stop treatment suddenly without speaking to your doctor. Stopping suddenly after prolonged use may cause withdrawal symptoms, which can include restlessness, anxiety, sweating, difficulty sleeping, nausea and other physical symptoms.
Take codeine only as prescribed and discuss any concerns about dependence, addiction or stopping treatment with your doctor or pharmacist.
Possible Side Effects
Some people may experience side effects, including:
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Drowsiness or dizziness
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Constipation
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Nausea or vomiting
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Dry mouth
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Headache
Seek medical attention immediately if you experience:
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Difficulty breathing
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Severe drowsiness
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Confusion or hallucinations
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Signs of an allergic reaction (swelling, rash, breathing difficulty)
Warnings & Precautions
Before using Codeine Phosphate, inform your healthcare provider if you:
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Have a history of opioid dependence or substance misuse
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Suffer from breathing problems, asthma, or COPD
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Have liver or kidney disease
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Are pregnant or breastfeeding
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Are taking other medicines that cause drowsiness
Important notes:
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Do not drink alcohol while taking Codeine
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Do not drive or operate machinery if you feel drowsy
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Do not share this medicine with others
Codeine Phosphate is classified as a controlled drug in the UK.
FAQs
1. What is Codeine Phosphate 30mg used for?
It is used for short-term treatment of moderate pain, persistent dry coughs, or prolonged diarrhoea when other treatments are ineffective.
2. Is Codeine Phosphate addictive?
Yes. Codeine can cause dependence if used for long periods or at high doses, which is why it is prescribed short-term only.
3. Can I take Codeine with paracetamol or ibuprofen?
Yes, but only if advised by your healthcare professional and within recommended limits.
4. How long does Codeine take to work?
Pain relief usually begins within 30–60 minutes after taking a dose.
5. Is Codeine Phosphate legal in the UK?
Yes, but it is prescription-only and regulated under UK medicines law.













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