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Famotidine Tablets (20mg / 40mg)

Famotidine Tablets (20mg / 40mg)

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Buy Famotidine Tablets (20mg / 40mg) Online In The UK



Famotidine Tablets provide fast-acting, reliable relief from symptoms caused by excess stomach acid, such as heartburn, indigestion, and acid reflux. They are among the class of drugs known as H2 blockers and work by limiting how much acid your stomach produces. This is helpful to calm irritation, relieve discomfort, and avoid acid-related flare-ups during the day. 


Available in both 20mg and 40mg strengths, Famotidine is commonly used to treat conditions like gastro-oesophageal reflux disease (GORD), peptic ulcer disease, and acid-related pain. The tablets work relatively fast and relieve symptoms for a long time, so this is great if you are having problems like recurring heartburn or nighttime acid symptoms. 


Whether you frequently suffer from heartburn or have newly experienced symptoms, Famotidine provides a more efficient way to ease your acid indigestion and restore comfort to your body. 
 

How To Use Famotidine Tablets (20mg / 40mg)

  • Take 1 tablet once or twice daily, exactly as your doctor or pharmacist tells you.
  • Swallow the tablet whole with a glass of water.
  • You can take it with or without food.
  • Try to take your dose at the same time every day.
  • Do not double-dose if you miss one—just take the next dose as normal.

If your symptoms don’t improve after a few days, speak to a healthcare professional.

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Side Effects of Famotidine Tablets (20mg / 40mg)

Not everyone gets side effects, but some people may experience:

Common side effects

  • Headache
  • Dizziness
  • Constipation or diarrhoea
  • Nausea (feeling sick)

Less common side effects

  • Tiredness
  • Stomach pain
  • Dry mouth
  • Skin rash or itching

Seek medical help if you notice:

  • Trouble breathing
  • Swelling of the face or throat
  • Severe skin reactions
  • Unexplained bruising

These serious effects are rare, but you should get help quickly if they happen.

Frequently Asked Question


Famotidine is used to relieve heartburn, acid reflux, indigestion, and to help heal stomach or duodenal ulcers.


It belongs to a group of medicines called H2 blockers, which reduce the amount of acid your stomach makes. Less acid = less irritation and burning.


Yes, you can take it with or without food.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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What is Famotidine used for?


Famotidine is used to relieve heartburn, acid reflux, indigestion, and to help heal stomach or duodenal ulcers.

How does Famotidine work?


It belongs to a group of medicines called H2 blockers, which reduce the amount of acid your stomach makes. Less acid = less irritation and burning.

Can I take Famotidine with food?


Yes, you can take it with or without food.

Comparison of Weight Loss Injectables

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Injectable Pen

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Saxenda®

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Active Ingredient Tirzepatide Semaglutide Liraglutide
Mechanism of Action GLP-1 and GIP receptor agonist GLP-1 receptor agonist GLP-1 receptor agonist
Administration Weekly injection Weekly injection Daily injection
Dosage Varies by patient, typically starting low Varies, typically starting at 0.25 mg Varies, starting at 0.6 mg
Effect on Appetite Significantly reduces appetite and cravings Reduces appetite and increases satiety Reduces appetite and increases satiety
Average Weight Loss Up to 20% body weight reduction Up to 15% body weight reduction Significant weight reduction
Side Effects Nausea, vomiting, diarrhoea, constipation Nausea, vomiting, diarrhoea, constipation Nausea, diarrhoea, constipation, hypoglycemia
Approval FDA-approved for weight loss FDA-approved for weight loss FDA-approved for weight loss
Suitable For Adults with BMI ≥30 or ≥27 with comorbidities Adults with BMI ≥30 or ≥27 with comorbidities Adults with BMI ≥30 or ≥27 with comorbidities