Skip to main content

Ranitidine 150mg Tablets

Complimentary treatments available at

Although we no longer offer treatments for this condition through our Online Doctor service, you could find something to help at our sister company Chemist Direct. Receive 10% off your order when you quote 10NEWCD*

Shop now

*Excludes Slimfast, Regaine, Nicorette and baby milk

What is Ranitidine?

Ranitidine is an H2 Receptor Antagonist. It is mainly used to treat heartburn and the other symptoms of Gastro-oesophageal reflux disease, stomach and duodenal ulcers and to stop certain medicines (NSAIDs) from causing stomach ulcers.

Start an online consultation with one of our UK-registered GPs
Our GP may advise, prescribe or recommend further tests
Receive certified genuine medication by your chosen delivery method
Ranitidine 150mg Tablets Ranitidine 150mg Tablets £0.03 per tablet Prescription only Select

What are the key benefits of Ranitidine?

Ranitidine is a specific rapidly acting histamine H2-receptor antagonist. It inhibits base line acid levels and the secretion of gastric acid in response to eating, reducing both the volume and the acid content of the secretion. Ranitidine has a long duration of action and so a single 150mg dose effectively suppressing gastric acid secretion for 12 hours.

How does Ranitidine work?

Ranitidine works by reducing the amount of acid made by the stomach. As a result stomach acid that escapes into the gullet causes fewer problems.

How to take Ranitidine?

It’s important to read the enclosed leaflet carefully before using Ranitidine.

To treat heartburn caused by Gastro-oesophageal reflux disease the normal dose is one tablet, to be taken twice a day. Swallow your tablets whole with a drink of water.

Is Ranitidine suitable for me?

During your consultation, it is important to tell us if you are taking any other medicines, either from your doctor or purchased from a pharmacy without a prescription. In particular, tell your doctor if you are taking any of the following as they may not work effectively if taking ranitidine tablets:

  • Ketoconazole (an antifungal agent)
  • Drugs used for HIV: Atazanavir, Delaviridine.
  • Gefitnib (a drug used in the treatment of certain types of cancer.)
  • Drugs that induce sleep: Triazolam, Midazolam. Midazolam may be given to you before surgery. Tell your doctor that you are taking Ranitide Tablets before surgery in case your doctor wants to give you midazolam.
  • Glipizide (used to treat diabetes)
  • Theophylline (used in the treatment of asthma)
  • Lidocaine (local anaesthetic),
  • Phenytoin (treatment of epilepsy.)
  • Propanolol (treatment of hypertension)
  • Antacids (a drug that reduces or neutralizes stomach acid)
  • Procainamide (for irregular heart beat).
  • Blood-thinning agents: warfarin
  • Non-steroidal anti-inflammatory medicines (NSAIDS) such as aspirin or ibuprofen
  • Diazepam, a medicine used to treat anxiety
  • Glipizide, a medicine used to lower blood glucose

It’s very important to give a full picture of your general health in the consultation, to make sure the doctor has all the information required to assess the suitability of ranitidine for you. Please tell your doctor if you are pregnant, planning to become pregnant, or are breastfeeding.

Start questionnaire

What are the side effects of Ranitidine?

Like all medicines, ranitidine can cause side effects, although not everybody gets them.

You may suffer an allergic reaction; if any of the following side effects come on soon after taking these tablets, stop the tablets and tell your doctor immediately:

  • Sudden wheeziness or tightness in the chest
  • Swelling of eyelids, face, or lips; with or without a lumpy skin rash ("hives") anywhere on the body
  • Unexplained fever
  • Feeling faint, especially on standing up

The following uncommon side effects (affects less than 1 in 100 people) have also been reported:

  • Stomach pain
  • Constipation
  • Feeling sick

For a full list of potential side effects and other important information, please read the patient information leaflet provided in the pack before starting any course of treatment. The leaflet can also be viewed online here.