How It Works
Diclofenac blocks the action of natural substances called prostaglandins, which are responsible for pain and inflammation in the body.
By reducing these chemicals, it helps lower swelling, relieve soreness, and make movement a bit easier.
The “potassium” version is absorbed faster than diclofenac sodium, so it’s often chosen when pain relief is needed sooner rather than later.
Typical Use and Dosage
Always follow your doctor’s or pharmacist’s instructions.
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Adults: The usual dose is one 50 mg tablet two or three times a day, depending on pain levels.
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Swallow the tablets whole with water, ideally with or just after food to help protect your stomach.
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Do not take more than the prescribed amount, and don’t use it for longer than advised.
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If you miss a dose, take it when you remember — but skip it if it’s almost time for your next one.
Diclofenac is designed for short-term pain control unless your doctor says otherwise.
Possible Side Effects
Like all NSAIDs, diclofenac can cause side effects, although not everyone gets them.
Common ones include:
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Indigestion, heartburn, or mild stomach pain
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Nausea or feeling bloated
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Headache or dizziness
Less common but serious effects that need medical attention:
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Black stools or vomiting blood (possible stomach bleeding)
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Shortness of breath or chest pain
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Severe skin rash or swelling of the face/throat
If anything unusual happens, stop taking it and speak to a healthcare professional straight away.
Precautions and Warnings
Diclofenac isn’t suitable for everyone. Talk to your doctor or pharmacist before taking if you:
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Have ever had stomach ulcers, bleeding, or digestive problems
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Suffer from heart disease, high blood pressure, or circulation issues
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Have asthma, kidney, or liver problems
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Are pregnant (especially in the last three months) or breastfeeding
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Take other NSAIDs (like ibuprofen or naproxen) or blood-thinning medicines
Avoid alcohol while using diclofenac — it can irritate the stomach and increase side-effect risks.
Legal and Safety Information (UK)
Diclofenac Potassium 50 mg is available in the UK as a Prescription-Only Medicine (POM), though some lower-dose forms are sold by pharmacists after a brief consultation.
Always obtain it through a registered UK pharmacy.
Never buy painkillers from unverified sources — quality and safety can’t be guaranteed.
Storage
Keep tablets in their original blister pack below 25 °C.
Store in a cool, dry place, out of the reach of children.
Return any unused or expired medicine to a pharmacy for safe disposal.
Summary
Diclofenac Potassium 50 mg is a fast-acting NSAID for the relief of everyday aches and pains caused by inflammation.
Used correctly, it can ease movement, reduce swelling, and help you get back to normal life more comfortably.
Always follow the dose on your prescription and talk to your pharmacist if you need advice about ongoing pain or side effects.

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