Losec (Omeprazole) Tablets

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Losec MUPS is the brand name of Omeprazole, a commonly prescribed medication for the treatment of acid reflux. Belonging to a group of drugs referred to as Proton Pump Inhibitors (PPI), Losec MUPS tablets are also used to treat gastric and duodenal ulcers, as well as gastro-oesophageal reflux disease (GORD), also known as acid reflux. It is a condition affecting the digestion system and occurs in roughly 20% of the population.

Losec tablets work by reducing the amount of acid produced in the stomach, thereby relieving the symptoms associated with acid reflux.

If you suffer from acid reflux, heartburn or excess stomach acid, you can buy Losec MUPS tablets online at Smart Chemist. Simply complete our short and confidential online medical questionnaire and select your desired delivery method. Also available at Smart Chemist for the treatment of acid reflux you can buy omeprazole 20mg tablets online as a lower cost alternative to the branded Losec 20mg tablets.

For more information about Losec MUPS tablets, or to find out which treatment is right for you contact one of our expert Pharmacist at Smart Chemist.

Patient information

*Always read the patient information leaflet before starting your treatment.

How do Losec MUPS tablets work?

The active ingredient of Losec MUPS 20mg tablets, Omeprazole, is a selective proton pump inhibitor and it belongs to a class of drug known as Proton Pump Inhibitors (PPI). They are used in the treatment of acid reflux (GORD) and heartburn. Acid reflux is caused by two main factors; a build-up of excess acid in the stomach, and a weakening of the lower sphincter muscles of the oesophagus, which work to prevent the escape of stomach acid. Both these factors together result in stomach acid travelling up and into the oesophagus.

Omeprazole works by selectively acting on proton pumps at the surface of gastric parietal cells found lining the stomach. These cells are involved in the production of gastric acid and its secretion into the stomach. Losec (Omeprazole) 20mg tablets inhibit the final stage of this system resulting in reduced gastric acid production and secretion. If you suffer from heartburn or symptoms of acid reflux, you can buy losec (omeprazole) 20mg tablets online at Smart Chemist for fast and effective treatment. For more information speak to a member of our pharmacy team today.

Are Losec MUPS & Omeprazole tablets the same?

Losec MUPS 20mg is the branded version of Omeprazole 20mg gastro-resistant tablets. Omeprazole is the generic name of the medication, and generic Omeprazole 20mg gastro-resistant tablets are medically equivalent to Losec MUPS 20mg tablets but are available at a lower price.

Losec MUPS tablets can also be dissolved in water, as well as swallowed whole with a glass of water.


You can buy Losec MUPS 20mg tablets at Smart Chemist by simply completing our short and confidential online medical questionnaire. Also available to purchase through Smart Chemist are generic omeprazole 20mg tablets.

What dose should I choose?

The recommended starting dose of Losec MUPS tablets, in accordance with the British National Formulary (BNF), is 20mg to be taken once daily.

How should I take Losec MUPS tablets?

Losec MUPS tablets should be taken as a single dose in the morning, swallowed whole or dissolved in a glass of water, 30-60 minutes before food. It should be taken at the same time each day.

Do Losec (omeprazole) tablets have any side effects?

Side effects commonly associated with Losec MUPS tablets include:

  • Abdominal pain
  • Constipation
  • Diarrhoea
  • Flatulence
  • GI disturbances
  • Headache
  • Nausea & Vomiting


To find out more about the side effects associated with Losec MUPS or omeprazole tablets read the patient information leaflet provided. Alternatively, you can speak to one of our expert Pharmacists here at Smart Chemist.