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GASTRODENOL 120 mg FILM-COATED TABLETS

This page is for general information. Consult a doctor for personal advice. Call emergency services if symptoms are severe.
About the medicine

How to use GASTRODENOL 120 mg FILM-COATED TABLETS

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This page provides general information and does not replace a doctor’s consultation. Always consult a doctor before taking any medication. Seek urgent medical care if symptoms are severe.

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Introduction

Leaflet: information for the user

Gastrodenol 120 mg film-coated tablets

Colloidal bismuth subcitrate

Read the entire leaflet carefully before starting to take this medication, as it contains important information for you.

  • Keep this leaflet, as you may need to read it again.
  • If you have any doubts, consult your doctor or pharmacist.
  • This medication has been prescribed to you only, and you should not give it to others, even if they have the same symptoms as you, as it may harm them.
  • If you experience side effects, consult your doctor or pharmacist, even if they are side effects not listed in this leaflet. See section 4.

Contents of the leaflet:

  1. What is Gastrodenol and what is it used for
  2. What you need to know before taking Gastrodenol
  3. How to take Gastrodenol
  4. Possible side effects

5 Conservation of Gastrodenol

  1. Package contents and additional information

1. What is Gastrodenol and what is it used for

Colloidal bismuth subcitrate is a medication with direct action on Helicobacter pylori, a pathogenic microorganism related to gastritis, duodenal ulcer, and gastric ulcer.

Gastrodenol is indicated for the treatment of:

  • Chronic gastritis associated with Helicobacter pylori
  • Gastric and duodenal ulcers
Doctor consultation

Not sure if this medicine is right for you?

Discuss your symptoms and treatment with a doctor online.

2. What you need to know before taking Gastrodenol

  • If you are allergic to colloidal bismuth subcitrate or any of the other components of this medication (listed in section 6).
  • If you have severe kidney disorders.
  • If you are pregnant.
  • Pediatric population (in children under 12 years of age).

Warnings and precautions

Prolonged use of high doses of bismuth compounds is not recommended, as it may occasionally cause neurological toxicity (encephalopathy) that is reversible. If Gastrodenol is used at the recommended doses, the probability of this occurring is very small. However, concomitant use of other medications containing bismuth is not recommended.

It is also not recommended to consume alcoholic beverages, as colloidal bismuth subcitrate is a potent inhibitor of alcohol dehydrogenase, an enzyme that prevents the bacterial oxidation of ethanol to acetaldehyde.

The typical symptoms of this excess acetaldehyde include skin rash, tachycardia, shortness of breath, nausea, and vomiting (disulfiram effect).

Warning about excipients

Patients with renal insufficiency or with low-potassium diets should be aware that this medication contains 40 mg (1 mmol) of potassium per tablet.

Children and adolescents

Gastrodenol is contraindicated in children under 12 years of age and is not recommended in patients between 12 and 18 years of age.

Other medications and Gastrodenol

Tell your doctor or pharmacist if you are taking or have recently taken or may need to take any other medication.

Concomitant administration of Gastrodenol and tetracyclines (a group of antibiotics) may inhibit the absorption of orally administered tetracyclines.

Do not ingest other medications, foods, or beverages, particularly antacids, milk, fruit, or fruit juices, half an hour before or half an hour after taking Gastrodenol, as they may alter its action.

During treatment with Gastrodenol, it is not recommended to take other medications that contain bismuth, as prolonged use of any bismuth compound in high doses may cause neurological toxicity (encephalopathy), which is reversible.

Taking Gastrodenol with food, beverages, and alcohol

During treatment, it is recommended not to drink milk, as it may interfere with the mechanism of action of Gastrodenol. Small amounts of milk can be taken with coffee or tea, taken with meals, as they do not cause significant interference.

During treatment with Gastrodenol, it is not recommended to consume alcoholic beverages.

Pregnancy, breastfeeding, and fertility

If you are pregnant or breastfeeding, think you may be pregnant, or plan to become pregnant, consult your doctor or pharmacist before using any medication.

There is not enough information available on the use of Gastrodenol during pregnancy and breastfeeding to assess the possibility of adverse effects. No adverse effects have been observed in animals. Due to the lack of data, its use during pregnancy is not recommended.

Driving and using machines

Gastrodenol has no significant influence on the ability to drive and use machines.

3. How to take Gastrodenol

Follow the administration instructions for this medication exactly as indicated by your doctor or pharmacist. If in doubt, consult your doctor or pharmacist again.

The recommended dose is 4 tablets per day.

The tablets should be swallowed whole with a little water, without chewing.

Posology

Adults: 240 mg (2 tablets), 2 times a day, on an empty stomach, half an hour before breakfast and half an hour before dinner or at bedtime.

Alternatively: 120 mg (1 tablet), 4 times a day, on an empty stomach, half an hour before breakfast, lunch, snack, and 2 hours after dinner.

Elderly patients: 240 mg (2 tablets), 2 times a day, on an empty stomach, half an hour before breakfast and half an hour before dinner or at bedtime.

Alternatively: 120 mg (1 tablet), 4 times a day, on an empty stomach, half an hour before breakfast, lunch, snack, and 2 hours after dinner.

Do not take Gastrodenol for more than two months consecutively. After that, a rest period of at least two months without taking Gastrodenol or other medications containing bismuth is recommended.

For the treatment of gastric or duodenal ulcers, the duration of treatment is 4 to 8 weeks.

For the eradication of Helicobacter pylori, a combined therapy with other medications and a treatment duration of 7 to 14 days is recommended.

Prolonged administration of the medication is not advisable, nor is it recommended as maintenance treatment.

Pediatric population:

Gastrodenol is contraindicated in children under 12 years of age and is not recommended in patients between 12 and 18 years of age.

If you take more Gastrodenol than you should

An acute or massive overdose may damage kidney function, which may take 10 days to appear.

After a very high single dose, treatment consists of gastric lavage, followed by repeated doses of activated charcoal and osmotic laxatives (medications that incorporate water into the stool, making it softer and easier to evacuate). Generally, the absorption of bismuth does not require additional treatment.

Your doctor will determine the bismuth concentrations in blood and urine, both in cases of acute and chronic intoxication, in order to confirm that the symptoms are due to increased bismuth absorption. In that case, you will be given the appropriate treatment (called chelation therapy).

If there is a severe alteration of kidney function after chelation therapy, hemodialysis will be applied (a procedure that removes waste from the blood when the kidneys can no longer perform their function).

In case of overdose or accidental ingestion, contact your doctor or pharmacist immediately or call the Toxicology Information Service. Phone (91) 562 04 20, indicating the medication and the amount taken.

If you forget to take Gastrodenol

Take the dose as soon as possible, provided that it does not result in taking a double dose.

Do not take a double dose to make up for forgotten doses.

Medicine questions

Started taking the medicine and have questions?

Discuss your symptoms and treatment with a doctor online.

4. Possible side effects

Like all medications, this medication can cause side effects, although not everyone will experience them.

Possible side effects are listed according to the following categories:

? Side effects very common(may affect more than 1 in 10 people)

? Side effects common(may affect up to 1 in 10 people)

  • Side effects uncommon(may affect up to 1 in 100 people)
  • Side effects of unknown frequency: cannot be estimated from the available data.

Very common side effects

  • Blackening of the stool

Uncommon side effects

  • Nausea
  • Vomiting
  • Constipation
  • Diarrhea
  • Rashes
  • Pruritus (itching)

Side effects of unknown frequency

  • Anaphylactic reaction (allergic reaction)

If you consider that any of the side effects you are experiencing is serious or if you notice any side effect not mentioned in this leaflet, inform your doctor or pharmacist.

Reporting side effects

If you experience any type of side effect, consult your doctor or pharmacist, even if it is a possible side effect not listed in this leaflet. You can also report them directly through the Spanish Medication Surveillance System for Human Use https://www.notificaram.es. By reporting side effects, you can contribute to providing more information on the safety of this medication.

5. Conservation of Gastrodenol

Keep this medication out of sight and reach of children. Store below 25°C.

Do not use this medication after the expiration date shown on the packaging after CAD. The expiration date is the last day of the month indicated.

Medications should not be disposed of through wastewater or household waste.

Deposit unused medications in the SIGRE collection point at the pharmacy. In case of doubt, ask your pharmacist how to dispose of the packaging and medications you no longer need. This will help protect the environment.

6. Package contents and additional information

  • The active ingredient is colloidal bismuth subcitrate. Each tablet contains 120 mg of bismuth trioxide (Bi2O3).
  • The other components are: potassium citrate E332, ammonium citrate, cornstarch, povidone K-30, potassium polyacrylate, macrogol 6000, magnesium stearate, and hypromellose E461.

Appearance of the product and package contentsPackage with 50 film-coated tablets. Marketing authorization holder

Tora Laboratories, S.L.U.

Avenida de Oporto, 60

28019 Madrid, Spain

Manufacturer

Industria Química y Farmacéutica VIR, S.A.

C/ Laguna, 66-68-70 Polígono Industrial Urtinsa II 28923 Alcorcón (Madrid)

Spain

Date of the last revision of this leaflet:

September 2020

Detailed and updated information on this medication is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es/

Online doctors for GASTRODENOL 120 mg FILM-COATED TABLETS

Discuss questions about GASTRODENOL 120 mg FILM-COATED TABLETS, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

5.0 (75)
Doctor

Lina Travkina

Family medicine 13 years exp.

Dr. Lina Travkina is a licensed family and preventive medicine doctor based in Italy. She provides online consultations for adults and children, supporting patients across all stages of care – from acute symptom management to long-term health monitoring and prevention.

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  • Chronic conditions: hypertension, diabetes, hypercholesterolemia, metabolic syndrome, thyroid disorders, excess weight.
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Dr. Travkina combines evidence-based medicine with an attentive, personalised approach. Her consultations focus not only on treatment, but also on prevention, recovery, and long-term wellbeing.

If during the consultation it becomes clear that your case requires in-person assessment or specialised care outside of her scope, the session will be terminated and the payment fully refunded.

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Jorge Correa Bellido

General medicine 7 years exp.

Dr. Jorge Correa Bellido is a Spanish physician who offers online consultations in Spanish and English. He graduated from the University of La Laguna and has a solid background in clinical practice and international research.

Throughout his career, he has participated in various medical and academic projects, including a research fellowship in Spain, where he contributed to evidence-based studies in the field of family medicine. This experience allowed him to broaden his global perspective on healthcare and comprehensive patient care.

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Lizaveta Trafimchuk Takhvaniuk

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Dr. Lizaveta Trafimchuk Takhvaniuk graduated in Medicine and subsequently specialized in Dermatology and Venereology. She has more than 10 years of clinical experience and is licensed to practice in Spain, where she focuses on the comprehensive diagnosis and treatment of dermatological conditions.

Throughout her education and professional career, Dr. Trafimchuk has gained extensive experience in managing diseases of the skin, hair, and nails, as well as in the diagnosis, treatment, and prevention of sexually transmitted infections (STIs). Her clinical approach is based on evidence-based medicine, combined with personalized care tailored to each patient’s needs.

In her daily practice, she treats a wide range of dermatological conditions, including chronic inflammatory dermatoses such as acne, rosacea, atopic dermatitis, psoriasis, and eczema. She also has experience in treating pigmentation disorders, including melasma, post-inflammatory hyperpigmentation, and dyschromia.

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Dr. Andrei Popov is a family physician with specialized training in the management of chronic pain. He provides video consultations for adults in Spain and across Europe: whether you have been living with pain for months that no one has been able to properly explain, or you need to resolve a health issue without waiting weeks for an appointment.

His approach is clear: to listen, organize your case, and provide you with a practical roadmap based on evidence-based medicine and adapted to your medical history and personal needs.

Pain: how he can help

  • Chronic pain (more than 3 months
  • Migraine and recurrent or high-intensity headaches
  •  Neck, lower back, back and joint pain
  •  Post-traumatic pain after injuries or surgeries
  •  Pain of neurological origin: neuralgia, neuropathic pain, fibromyalgia

General medicine

  • Frequent respiratory infections (cold, flu, persistent cough)
  • Hypertension, diabetes and metabolic disorders
  • Review of laboratory tests and MRI/CT reports (explained in clear language)
  • Preventive medicine and health monitoring
  • Second opinions and treatment adjustments (when clinically appropriate)

What the consultation is like
 Each session lasts up to 30 minutes. We review symptoms, medical history, medications and any tests you provide, and you finish the consultation with a clear treatment plan, defined next steps, and criteria to understand when follow-up may be needed. If warning signs are detected, he will clearly advise whether you need in-person care or urgent medical attention.

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Hocine Lokchiri

General medicine 21 years exp.

Dr. Hocine Lokchiri is a French consultant with over 20 years of experience in General and Emergency Medicine. He works with adults and children, helping patients with urgent symptoms, infections, sudden health changes and everyday medical concerns that require timely evaluation. His background includes clinical practice in France, Switzerland and the United Arab Emirates, which allows him to navigate different healthcare systems and manage a wide range of conditions with confidence. Patients value his calm, structured approach, clear explanations and evidence-based decision-making.

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Many patients reach out when symptoms appear suddenly and cause concern, when a child becomes unwell unexpectedly, when a rash changes or spreads, or when it’s unclear whether an in-person examination is necessary. His emergency medicine background is particularly valuable online, helping patients understand risk levels, identify warning signs and choose safe next steps.

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Dr. Lokchiri’s professional training includes:

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He is an active member of several professional organisations, including the French Society of Emergency Medicine (SFMU), the French Association for Emergency Physicians (AMUF) and the Swiss Society of Emergency and Rescue Medicine (SGNOR). In consultations, he works with clarity and precision, helping patients understand their symptoms, possible risks and the safest treatment options.
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Antonio Cayatte

General medicine 44 years exp.

Dr Antonio Cayatte is a physician in General and Acute Medicine with over 30 years of experience across clinical care, medical research, and education. He offers online consultations for adults with a wide range of symptoms, both acute and chronic. His clinical background includes: 

  • assessment of sudden or unclear symptoms
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Dr. Antonio Cayatte provides comprehensive care for a broad spectrum of common health concerns, including:

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  • Digestive & Urinary: gastroesophageal reflux disease (GERD), gastritis, urinary tract infections, and cystitis
  • Chronic Conditions: hypertension, elevated cholesterol, and structured weight management planning
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Doctor

Anna Biriukova

General medicine 6 years exp.

Dr Anna Biriukova is an internal medicine doctor with clinical experience in cardiology, endocrinology, and gastroenterology. She provides online consultations for adults, offering expert medical support for heart health, hormonal balance, digestive issues, and general internal medicine.

Cardiology – Diagnosis and treatment of:

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Endocrinology – Diabetes, thyroid, metabolism:
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Gastroenterology – Digestive health:
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  • Stomach and intestinal conditions: gastritis, irritable bowel syndrome (IBS), indigestion.
  • Management of chronic digestive disorders and interpretation of tests (endoscopy, ultrasound, labs).
General internal medicine and preventive care:
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Frequently Asked Questions

Is a prescription required for GASTRODENOL 120 mg FILM-COATED TABLETS?

GASTRODENOL 120 mg FILM-COATED TABLETS requires a prescription in Spain. You can check with a doctor online whether this medicine may be appropriate for your situation.

What is the active substance in GASTRODENOL 120 mg FILM-COATED TABLETS?

The active ingredient in GASTRODENOL 120 mg FILM-COATED TABLETS is bismuth subcitrate. This information helps identify medicines with the same composition but different brand names.

How much does GASTRODENOL 120 mg FILM-COATED TABLETS cost in pharmacies?

The average pharmacy price for GASTRODENOL 120 mg FILM-COATED TABLETS is around 9.59 EUR. Prices may vary depending on the manufacturer and dosage form.

Who manufactures GASTRODENOL 120 mg FILM-COATED TABLETS?

GASTRODENOL 120 mg FILM-COATED TABLETS is manufactured by Tora Laboratories S.L.U.. Pharmacy brands and packaging may differ depending on the distributor.

Which doctors can assess the use of GASTRODENOL 120 mg FILM-COATED TABLETS online?

Doctors such as Family doctors, Psychiatrists, Dermatologists, Cardiologists, Endocrinologists, Gastroenterologists, Pulmonologists, Nephrologists, Rheumatologists, Hematologists, Infectious disease physicians, Allergists, Geriatricians, Paediatricians, Oncologists may assess whether GASTRODENOL 120 mg FILM-COATED TABLETS is appropriate, depending on your situation and local regulations. You can book an online consultation to discuss your symptoms and possible next steps.

How to buy GASTRODENOL 120 mg FILM-COATED TABLETS in Spain?

Spain has a well-developed healthcare infrastructure across major cities such as Madrid, Barcelona, Valencia, and Seville. Pharmacies are widely available and operate under strict regulations, ensuring access to prescribed medications.

You can buy GASTRODENOL 120 mg FILM-COATED TABLETS in Madrid, Barcelona, Seville, or Valencia at any local pharmacy with a valid prescription.

To obtain a prescription, you can use Oladoctor:

What are the alternatives to GASTRODENOL 120 mg FILM-COATED TABLETS?

Other medicines with the same active substance (bismuth subcitrate) include COPINAL 300 mg CAPSULES, COPINAL 300 mg ORAL SUSPENSION, ALAPANZOL 40 mg GASTRO-RESISTANT TABLETS. These may have different brand names or formulations but contain the same therapeutic ingredient. Always consult a doctor before switching or starting a new medicine.

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