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Diclofenac Gastro Resistant Tablets

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Treatment Information

Table of contents

Patient Reviews: How Diclofenac Gastro Resistant Tablets Has Made a Difference

Diclofenac is an effective anti-inflammatory painkiller which begins to work in as little as 30 minutes. Diclofenac tablets are also sold under the brand name Dicloflex. You can also buy Diclofenac in a gel preparation from pharmacies under the brand name Volterol.

Unlike Ibuprofen, which can be purchased over the counter, Diclofenac tablets are a stronger painkiller that can only be obtained with a prescription.

If you do not have a prescription, our online doctor can issue a prescription for Diclofenac following a short online consultation.

Where can I buy Diclofenac tablets?

You can safely buy Diclofenac online from our trusted online pharmacy.

To begin your order, simply fill out our short online medical questionnaire for our doctor to review.

If our online doctor approves your order before 3pm Monday to Friday, our UK based pharmacy will dispense and dispatch your item the same day via a next day delivery.

What is Diclofenac used for?

Generally, Diclofenac is used to treat moderate pain and inflammation, which may result from injury, infection or chronic conditions such as rheumatoid arthritis and osteoarthritis.

Diclofenac can be used to treat:

If you are unsure whether Diclofenac is suitable for you, speak to your doctor or ask a pharmacist for assistance in choosing the right treatment for your condition.

How does Diclofenac work?

Diclofenac belongs to a group of medicines called non-steroidal anti-inflammatory drugs, or NSAIDs [en-seds] for short. As the name suggests, they aim to reduce inflammation at the site of injury.

The pain and inflammation you experience following an injury or in chronic conditions such as arthritis are caused by a chemical called prostaglandins.

In order for the body to produce this pain-causing chemical, it requires an enzyme called Cyclooxygenase (COX). This enzyme makes prostaglandins from arachidonic acid, which is found in cell membranes and skeletal muscle.

Diclofenac inhibits the COX enzyme, preventing it from creating prostaglandins, thus reducing pain.

While the reduction in pain begins to take effect within just half an hour of taking Diclofenac, the anti-inflammatory effect may require a number of weeks of continuously taking Diclofenac before they become apparent.

How to take Diclofenac tablets?

You should take Diclofenac as prescribed by your doctor. The dosage you require may depend on the health condition or symptoms you have.

According to the PIL, the recommended dose for adults is 75mg or 150mg of Diclofenac, divided into numerous smaller doses per day.

Diclofenac tablets should be taken with or straight after food.

Swallow the tablets whole with a glass of water.

Do not crush or chew the tablet.

If you are not sure how to take Diclofenac, ask your doctor or a pharmacist. Instruction on how to take Diclofenac can be found within the patient information leaflet enclosed with your medicine.

Diclofenac side effects and cautions

Like all medications, Diclofenac carries with it a number of risks which must be considered before you take it. It is important to familiarise yourself with the information displayed in the patient information leaflet before you begin taking Diclofenac.

The leaflet contains important information regarding the safety of Diclofenac, including contraindications, complete lists of side effects and ingredients, whether it interacts with other drugs, instructions on how to take it and how to store it.

Alternatively, you can view the patient information leaflet for Diclofenac online.

Read all the patient information leaflets carefully before you start taking this medicine.

Can I take Diclofenac?

Not everyone can take Diclofenac. Diclofenac is not recommended if:

  • You’re pregnant or trying to conceive
  • You’re breastfeeding
  • You’re taking certain other medications
  • You have certain health conditions

If you are unsure whether it is safe for you to take Diclofenac, ask your doctor or a pharmacist for advice.

When you buy Diclofenac online from Prescription Doctor, you will be required to fill out a short online medical form for our doctor to review. It is important for your health and safety that you answer the questions openly and honestly.

Diclofenac side effects

Some people experience side effects when taking Diclofenac. Not everyone is affected, and the reactions can be different. Examples of common side effects produced when taking Diclofenac include:

  • Abdominal pain
  • Diarrhoea
  • Feeling dizzy
  • Headaches
  • Indigestion
  • Loss of appetite
  • Nausea or sickness
  • Skin rashes and hypersensitivity

This is not an exhaustive list of side effects. Further information regarding the safety of Diclofenac can be found in the patient information leaflet enclosed with the medicine.

If you experience any side effects after taking Diclofenac, inform your doctor straight away or ask a pharmacist for advice.

Allergic reaction

Do not take Diclofenac if you are allergic to Diclofenac or any of the other ingredients listed in the accompanying leaflet.

If you experience an allergic reaction to Diclofenac, cease taking medicine and seek emergency medical attention by going straight to the A&E department of the nearest hospital. Remember to take the packaging and any remaining medicine with you so that doctor's know exactly what you have taken.

Signs of an allergic reaction include:

  • Dry, red and cracked skin
  • Itchy, red, watery eyes
  • Raised, itchy, red rash (hives)
  • Stomach pain, nausea, vomiting, or diarrhoea
  • Swelling of the face, lips, tongue, eyes or throat
  • Tightening of the chest
  • Wheezing or difficulty breathing

Pregnancy and breastfeeding

Do not take Diclofenac if you are pregnant or think you might be pregnant or breastfeeding.

You should ask a doctor or pharmacist for advice before taking NSAIDs while pregnant or breastfeeding. Your GP would be in the best position to advise you on the right pain medication to take.

Other safety information

Always seek your doctor's advice before you buy Diclofenac online.

Please inform our doctor of all other medications you are currently taking, including those prescribed by your doctor or bought over the counter. You should also include health and herbal supplements you may be taking. This information is important for our clinicians and helps them safely prescribe Diclofenac for you.

Do not take Diclofenac past the expiry date printed on the packaging.

Never throw away medicine via household or water waste. Ask your local pharmacy to dispose of any unwanted or expired medication on your behalf.

Always keep medicine out of sight and reach from children and pets.

Never share your medication with anyone else, even if they are experiencing the same symptoms as you.

Frequently asked questions

What should I do if I forget to take Diclofenac when I should?

If you forget to take Diclofenac, take it as soon as you remember. If it is almost time for your next dose, skip the dose you missed and continue to take Diclofenac as you normally would.

Do not take more Diclofenac to make up for the dose you missed.

What should I do if I take more Diclofenac than I should?

If you accidentally take more Diclofenac than you should, inform your doctor right away or go straight to the nearest hospital's casualty department. Remember to take the packaging with you so that doctor's know what you have taken.

Will Diclofenac affect my ability to drive or operate machinery?

Diclofenac should not impact your ability to drive or operate machinery.

If you notice any side effects which might affect your concentration, such as dizziness, tiredness or disturbances in your vision, avoid driving or operating machinery until you feel well enough to do so.

Can I drink alcohol while taking Diclofenac?

It is generally considered safe to drink alcohol while taking diclofenac. However, vomiting caused by alcohol consumption can limit the effectiveness of the treatment.

Will Diclofenac affect my contraceptive pill?

Diclofenac should not affect your contraceptive pill - this includes combined contraceptives, progestogen-only (mini) pills, and the morning after pill.

If you experience vomiting or diarrhoea after taking Diclofenac, this may affect your contraception. In this scenario, you should check the patient information leaflet supplied with your contraception on what to do if you experience vomiting or diarrhoea.

Will Diclofenac impact my fertility?

Taking NSAIDs, such as Diclofenac, for a long time or in high doses can affect ovulation. If you are concerned about fertility while taking Diclofenac, speak to your doctor.

How long does it take for diclofenac to work?

Diclofenac tablets usually begin to work between 20 and 30 minutes after dosing.

Can you take diclofenac with co-codamol?

Yes, you can take diclofenac with opioid painkillers such as co-codamol.

Does Diclofenac cause stomach ulcers?

Diclofenac can cause stomach ulcers in people taking large doses or taking it for a long time. Due to this, it is recommended to take Diclofenac with or straight after food or a glass of milk. Taking Diclofenac with food will lessen the likeliness of experiencing stomach irritation.

If you are prone to stomach ulcers, or have had one in the past, speak with your doctor about this risk before you take Diclofenac.

How long can I take Diclofenac for?

Your doctor will inform you how long you should take Diclofenac for. It is important to follow your doctor's advice and take it for as long as prescribed.

Is Diclofenac addictive?

While Diclofenac is not addictive, you should avoid taking more Diclofenac than prescribed. If you find that Diclofenac is not effective against the pain you are experiencing, speak to your doctor. They may be able to alter the dosage or switch the medication to something more suitable.

Can I buy Diclofenac online in the UK?

You can easily buy Diclofenac online from Prescription Doctor's online UK pharmacy. To begin your order, simply complete our short online medical form for our doctor to review.

Our expert team of registered prescribers will assess your order and dispatch your medication from our Natcol registered pharmacy.

If your order is placed before 3pm, you can expect your medication to be delivered the next day discreetly.

We will keep you updated via email through every step of your order. If you have any questions about the medicine or your condition, you can send a message to our online doctor via your Prescription Doctor account.



NHS, 2018. Diclofenac.

Ricciotti, E., FitzGerald, GA., (2012); Prostaglandins and Inflammation.


Treatment information

  • Product Name: Diclofenac
  • Active Ingredient(s): Diclofenac sodium
  • Administration: Oral
  • Presentation: Tablets
  • Available Strength: 25 mg, 50 mg
  • Exemption: Prescription only medication
  • Application: Men and women over 18
  • Dosage: Take one to two - Every six to eight hourly.
  • Description: Pain Relief
  • Drug Class: Nonsteroidal anti-inflammatory drugs (NSAID)
  • Alcohol Consumption: Do not drink alcohol while taking NSAID
  • When Pregnant: Do not consume NSAID
  • When Breastfeeding: Do not consume NSAID
  • Price: 15.99 GBP
Click here to view the Diclofenac Gastro Resistant Tablets - Patient Information Leaflet

Authored & Reviewed By

Mohamed Imran Lakhi

Mohamed Imran Lakhi

MPharm - Lead Pharmacist
Imran Lakhi is the superintendent pharmacist and founder at Prescription Doctor. He has been at the core of our team.

Published on: 18/01/2017 Reviewed on: 13/03/2024

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