Facebook Pixel
New Patients – Get 10% Off Your First Consultation with Code: NEW10 at Checkout

Cimetidine is a medicinal drug used in the cure of duodenal ulcers or stomach ulcers. Cimetidine was the first drug to treat these ulcers, so it was a revolution in the world of pharmacology, since the antacids that existed until then only worked in a neutralizing way, decreasing the acidity in the patient's stomach. The other existing option was surgery. For this reason, the number of vagotomies (dissection of the “vagus” nerves of the stomach), which eliminated the production of acid, was significantly reduced. The other operation was an antrectomy, in which a piece of the stomach was cut.

prodName
Cimetidine
£42
Total
Starts at £42
Price Comparison

Select your preferred options and see the best price

PackPrice (£)
Cimetidine (Generic)200mg120 Tablets77.00
Cimetidine (Generic)200mg180 tablets109.00
Cimetidine (Generic)200mg60 Tablets42.00
Cimetidine (Generic)400mg120 Tablets78.00
Cimetidine (Generic)400mg180 tablets110.00
Cimetidine (Generic)400mg60 Tablets44.00
Cimetidine (Generic)800mg30 Tablets46.00
Cimetidine (Generic)800mg60 Tablets79.00
Cimetidine (Generic)800mg90 Tablets111.00
Tagamet200mg120 Tablets53.00
Tagamet200mg240 tablets95.00
Tagamet200mg360 tablets137.00
Tagamet400mg120 Tablets95.00
Tagamet400mg180 tablets137.00
Tagamet400mg60 Tablets53.00
Tagamet800mg30 Tablets53.00
Tagamet800mg60 Tablets95.00
Tagamet800mg90 Tablets137.00

It looks like you missed filling in questions from the last consultation.Click Here to submit your response.

Notify me once available

Out of Stock
  • No hidden fees

  • Secure checkout

  • UK Regulated online pharmacy

  • Trusted by over 100,000+ customers

Cimetidine Tablets for Ulcer and Acid Reflux Treatment

Cimetidine tablets are used to treat stomach ulcers, duodenal ulcers, and acid-related digestive discomfort. As one of the first medicines designed to reduce acid production rather than neutralise existing acid, Cimetidine transformed ulcer treatment. The medicine works by lowering stomach acid and can be used for short-term or maintenance therapy under medical guidance. Many people buy Cimetidine when they want dependable relief from ulcer-related pain, ongoing acid reflux, or persistent irritation caused by excess acidity.

Cimetidine remains a useful alternative for people who do not respond well to proton pump inhibitors or who benefit more from an H2 blocker. You can order Cimetidine online from Pharmacy Planet after completing a short medical assessment reviewed by a UK prescriber.

If you want an effective treatment that offers reliable acid control medication and supports the healing of stomach and duodenal ulcers, Cimetidine is a suitable option to consider.

What are Cimetidine Tablets?

Cimetidine is a histamine H2 receptor antagonist used to reduce stomach acid production. As an H2 blocker, it lowers acid levels, supports healing of irritated stomach lining, and reduces symptoms linked to reflux disorders and ulcer disease. By easing excess acidity, Cimetidine also maintains overall gastric health.

People often purchase Cimetidine tablets when they need support for acid discomfort or ulcer symptoms. It may be prescribed for stomach or duodenal ulcers, reflux-related pain, or recurring indigestion connected to high acidity.

Common Uses Include:

  • Stomach ulcers.
  • Duodenal ulcers.
  • Acid reflux or indigestion.
  • Night-time acid discomfort.
  • Maintenance therapy for ulcer prevention.

Cimetidine is also an option for people unable to take proton pump inhibitors, providing a different approach to stomach acid reduction.

How Do Cimetidine Tablets Work?

Cimetidine works by blocking histamine H2 receptors on parietal cells in the stomach lining. These receptors stimulate acid secretion. When Cimetidine blocks them, acid production decreases, easing ulcer-related pain and reducing irritation from refluxed acid.

Unlike proton pump inhibitors, which block acid at a later stage, Cimetidine reduces acid triggered by multiple factors such as food, caffeine, and digestive signals. Although it may not provide as strong suppression as newer treatments, it remains highly effective for many people seeking heartburn relief or structured GERD treatment.

Lower acid levels can improve digestive comfort, reduce burning sensations, and prevent repeated ulcer episodes.

How to Use Cimetidine Tablets?

Cimetidine tablets are usually taken once or several times daily depending on your condition. Your prescriber will recommend the dose suited to your symptoms and treatment plan.

Useful Tips for Best Results:

  • Take Cimetidine exactly as directed.
  • Swallow tablets with water.
  • For reflux flare-ups or heartburn relief, a dose may be taken shortly before trigger foods.
  • Do not exceed the recommended amount.
  • Avoid using over-the-counter Cimetidine for more than two weeks without medical advice.

Typical adult treatment plans may include:

  • Stomach or duodenal ulcers: 800 mg at bedtime, 400 mg twice daily, or 300 mg four times daily for 8-12 weeks.
  • Maintenance therapy: 400 mg at bedtime.
  • Short-term symptom relief: Taken before the meal that is likely to cause discomfort.

Children and infants require weight-based dosing and must only take Cimetidine under medical supervision.

Who Can Use Cimetidine Tablets?

Cimetidine tablets may be suitable for:

  • Adults with stomach or duodenal ulcers.
  • People with indigestion or acid reflux.
  • Individuals needing short-term digestive therapy for acidity.
  • Patients who cannot tolerate PPIs or who prefer an H2 blocker for milder symptoms.

Cimetidine tablets are not suitable for:

  • Anyone allergic to Cimetidine or similar medicines.
  • People with severe liver or kidney problems unless monitored.
  • Individuals needing stronger suppression than an H2 blocker provides.
  • Patients taking medicines that may interact with Cimetidine.

If unsure whether Cimetidine is suitable, complete the Pharmacy Planet consultation for a personalised assessment.

Possible Side Effects of Cimetidine Tablets

Cimetidine is generally well tolerated. Most effects are mild and temporary.

Common Side Effects:

  • Headache
  • Dizziness
  • Diarrhoea
  • Stomach discomfort
  • Nausea or vomiting

Less Common Side Effects:

  • Skin rash or itching
  • Joint or muscle pain
  • Breast swelling in men
  • Temporary liver enzyme changes

Rare Side Effects:

  • Changes in heart rate
  • Confusion, agitation, or drowsiness
  • Vision changes
  • Hair thinning
  • Blood cell changes
  • Kidney inflammation

Very Rare Side Effects:

  • Severe allergic reactions
  • Serious skin reactions
  • Pancreatitis
  • Severe liver disorders

Seek medical attention immediately if you experience swelling, breathing difficulty, severe rash, or yellowing of the skin or eyes.

Can Cimetidine Tablets Be Used with Other Treatments?

Cimetidine may be used alongside certain therapies for ulcer healing or acid management. However, it can interact with various medicines because it affects how some drugs are processed in the body. Always tell your prescriber about all medicines you take before you buy Cimetidine online.

Only use combination treatments approved by a healthcare professional.

Consultation and Prescription Process at Pharmacy Planet

Here is how the consultation and prescription process works at Pharmacy Planet:

  1. Complete the online consultation and tell us about your symptoms and general health.
  2. A prescriber reviews your information to confirm whether Cimetidine tablets are suitable.
  3. If approved, your Cimetidine tablets are delivered discreetly to your door.
Cimetidine Tablets

Cimetidine tablets are used to treat stomach ulcers, duodenal ulcers, and acid-related digestive discomfort. As one of the first medicines designed to reduce acid production rather than neutralise existing acid, Cimetidine transformed ulcer treatment. The medicine works by lowering stomach acid and can be used for short-term or maintenance therapy under medical guidance. Many people buy Cimetidine when they want dependable relief from ulcer-related pain, ongoing acid reflux, or persistent irritation caused by excess acidity.

Cimetidine remains a useful alternative for people who do not respond well to proton pump inhibitors or who benefit more from an H2 blocker. You can order Cimetidine online from Pharmacy Planet after completing a short medical assessment reviewed by a UK prescriber.

If you want an effective treatment that offers reliable acid control medication and supports the healing of stomach and duodenal ulcers, Cimetidine is a suitable option to consider.

Cimetidine is a histamine H2 receptor antagonist used to reduce stomach acid production. As an H2 blocker, it lowers acid levels, supports healing of irritated stomach lining, and reduces symptoms linked to reflux disorders and ulcer disease. By easing excess acidity, Cimetidine also maintains overall gastric health.

People often purchase Cimetidine tablets when they need support for acid discomfort or ulcer symptoms. It may be prescribed for stomach or duodenal ulcers, reflux-related pain, or recurring indigestion connected to high acidity.

Common Uses Include:

  • Stomach ulcers.
  • Duodenal ulcers.
  • Acid reflux or indigestion.
  • Night-time acid discomfort.
  • Maintenance therapy for ulcer prevention.

Cimetidine is also an option for people unable to take proton pump inhibitors, providing a different approach to stomach acid reduction.

Cimetidine works by blocking histamine H2 receptors on parietal cells in the stomach lining. These receptors stimulate acid secretion. When Cimetidine blocks them, acid production decreases, easing ulcer-related pain and reducing irritation from refluxed acid.

Unlike proton pump inhibitors, which block acid at a later stage, Cimetidine reduces acid triggered by multiple factors such as food, caffeine, and digestive signals. Although it may not provide as strong suppression as newer treatments, it remains highly effective for many people seeking heartburn relief or structured GERD treatment.

Lower acid levels can improve digestive comfort, reduce burning sensations, and prevent repeated ulcer episodes.

Cimetidine tablets are usually taken once or several times daily depending on your condition. Your prescriber will recommend the dose suited to your symptoms and treatment plan.

Useful Tips for Best Results:

  • Take Cimetidine exactly as directed.
  • Swallow tablets with water.
  • For reflux flare-ups or heartburn relief, a dose may be taken shortly before trigger foods.
  • Do not exceed the recommended amount.
  • Avoid using over-the-counter Cimetidine for more than two weeks without medical advice.

Typical adult treatment plans may include:

  • Stomach or duodenal ulcers: 800 mg at bedtime, 400 mg twice daily, or 300 mg four times daily for 8-12 weeks.
  • Maintenance therapy: 400 mg at bedtime.
  • Short-term symptom relief: Taken before the meal that is likely to cause discomfort.

Children and infants require weight-based dosing and must only take Cimetidine under medical supervision.

Cimetidine tablets may be suitable for:

  • Adults with stomach or duodenal ulcers.
  • People with indigestion or acid reflux.
  • Individuals needing short-term digestive therapy for acidity.
  • Patients who cannot tolerate PPIs or who prefer an H2 blocker for milder symptoms.

Cimetidine tablets are not suitable for:

  • Anyone allergic to Cimetidine or similar medicines.
  • People with severe liver or kidney problems unless monitored.
  • Individuals needing stronger suppression than an H2 blocker provides.
  • Patients taking medicines that may interact with Cimetidine.

If unsure whether Cimetidine is suitable, complete the Pharmacy Planet consultation for a personalised assessment.

Cimetidine is generally well tolerated. Most effects are mild and temporary.

Common Side Effects:

  • Headache
  • Dizziness
  • Diarrhoea
  • Stomach discomfort
  • Nausea or vomiting

Less Common Side Effects:

  • Skin rash or itching
  • Joint or muscle pain
  • Breast swelling in men
  • Temporary liver enzyme changes

Rare Side Effects:

  • Changes in heart rate
  • Confusion, agitation, or drowsiness
  • Vision changes
  • Hair thinning
  • Blood cell changes
  • Kidney inflammation

Very Rare Side Effects:

  • Severe allergic reactions
  • Serious skin reactions
  • Pancreatitis
  • Severe liver disorders

Seek medical attention immediately if you experience swelling, breathing difficulty, severe rash, or yellowing of the skin or eyes.

Cimetidine may be used alongside certain therapies for ulcer healing or acid management. However, it can interact with various medicines because it affects how some drugs are processed in the body. Always tell your prescriber about all medicines you take before you buy Cimetidine online.

Only use combination treatments approved by a healthcare professional.

Here is how the consultation and prescription process works at Pharmacy Planet:

  1. Complete the online consultation and tell us about your symptoms and general health.
  2. A prescriber reviews your information to confirm whether Cimetidine tablets are suitable.
  3. If approved, your Cimetidine tablets are delivered discreetly to your door.
Frequently Asked Questions

Cimetidine often begins easing discomfort within one hour, although ulcer healing may require several weeks.

Cimetidine offers effective acid control medication, although PPIs provide stronger suppression. Cimetidine remains suitable for many people with mild to moderate symptoms.

Yes, taking it 30 minutes before trigger foods can reduce symptoms.

Cimetidine can be used for occasional heartburn, but if your symptoms keep returning, speak to one of our prescribers for a more suitable long-term option.

It may reduce symptoms, but PPIs are usually preferred for prevention.

Yes, but reduce intake if it worsens your acid reflux.

Take it when you remember unless the next dose is near. Do not double up.

How it works
Start Consultation
Complete our online
clinical consultation

Answer a few questions on your health and your fitness goals.

Setup Coaching
Clinical
assessment

Our clinicians will review your clinical questionnaire to make sure treatment is right for you.

Ongoing Support
Welcome
aboard!

Once approved, you will access our wealth of experience and resources curated by our team and begin your clinical journey.

What our patients are saying

Need Help?

question mark
Do you have a question about weight loss treatment?

Start your weight loss journey heading in the right direction. Our team are here to help. Whether you’re unsure about which medicine is right for you or need help navigating the world of weight loss drugs, our team are on hand to help you make the right decision. We can put you in touch with one of our experienced weight loss clinicians so you can be sure you’re making the best decision with the most accurate information.

To get in touch, contact our Customer Service team on 0800 978 8956 or email [email protected].

Meet the team
Pharmacist Image

Review By

HARMINDER ‘HARMY’ KAUR

Last Updated On : Mar 13 2026

BSc(hons) Pharmacy

GPhC Number: 2061107

Pharmacist Image

Authored By

GURDEV SEHMI

Last Reviewed On : Mar 23 2026

BSc Pharm, MRPharmS, Independent Prescriber, Superintendent Pharmacist, Clinical Lead

GPhC Number: 2050925