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DULCOLAX BISACODYL 5 mg GASTRO-RESISTANT TABLETS

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About the medicine

How to use DULCOLAX BISACODYL 5 mg GASTRO-RESISTANT 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

Package Leaflet: Information for the User

DulcoLax Bisacodyl 5 mg Gastro-Resistant Tablets

Bisacodyl

Read this leaflet carefully before you start taking this medicine because it contains important information for you.

Follow the instructions for administration of the medicine contained in this leaflet or as indicated by your doctor or pharmacist.

  • Keep this leaflet, you may need to read it again.
  • If you need advice or more information, consult your pharmacist.
  • If you experience side effects, consult your doctor or pharmacist, even if they are not listed in this leaflet. See section 4.
  • You should consult a doctor if your symptoms worsen, if you do not have a bowel movement after 12 hours after taking the maximum daily dose, or if you do not improve after 7 days of treatment.

Contents of the Package Leaflet:

  1. What is DulcoLax and what is it used for
  2. What you need to know before taking DulcoLax
  3. How to take DulcoLax
  4. Possible side effects
  5. Storage of DulcoLax
  6. Contents of the pack and further information

1. What is DulcoLax and what is it used for

Bisacodyl, the active ingredient of this medicine, belongs to the group of stimulant laxatives, which act by direct contact with the mucosa of the intestine, stimulating the nerve endings of the intestinal wall, thus increasing its motility.

It is indicated for the symptomatic relief of occasional constipation in adults, adolescents, and children over 10 years old.

You should consult a doctor if your symptoms worsen or if you do not improve after 7 days of treatment.

Doctor consultation

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2. What you need to know before taking DulcoLax

Do not take DulcoLax:

  • If you are allergic to bisacodyl or any of the other ingredients of this medicine (listed in section 6).
  • If you have abdominal pain of unknown origin.
  • If you have intestinal obstruction or paralytic ileus.
  • If you have appendicitis or intestinal perforation.
  • If you have gastrointestinal bleeding or inflammatory intestinal diseases (ulcerative colitis, Crohn's disease).
  • If the patient is under 2 years old.
  • If you have water or electrolyte metabolism disorders.

Warnings and precautions

  • This medicine should not be taken continuously every day or for prolonged periods without investigating the cause of constipation.
  • If you are over 65 years old or in the case of debilitated patients, you should drink plenty of liquids and mineral salts, and inform your doctor that you are using a laxative so that they can monitor your electrolyte levels and avoid dehydration problems. The symptoms of dehydration are excessive thirst and little urine output.
  • If during the use of this medicine you experience dizziness and/or fainting, it may be due to constipation and not necessarily to the use of this medicine. These symptoms can occur as a consequence of straining during defecation or as a response to abdominal pain.
  • Stimulant laxatives, including DulcoLax, do not help with weight loss.

Consult your doctor or pharmacist before taking DulcoLax:

  • If, in addition to constipation, you have symptoms of appendicitis such as nausea, vomiting, or abdominal cramps, it is recommended that you consult a doctor to diagnose whether you have appendicitis or not.
  • If you have chronic constipation, as in that case, the cause of constipation should be investigated.

Children and adolescents

Children from 2 to 10 years old can only take this medicine under medical supervision.

Children under 2 years old cannot take this medicine; it is contraindicated in them.

Taking DulcoLax with other medicines

Inform your doctor or pharmacist if you are taking, have recently taken, or may take any other medicine.

In particular, if you are taking any of the following medicines, it may be necessary to interrupt treatment or modify the dose of one of them:

  • Medicines used to treat heart rhythm: Antiarrhythmics (quinidine).
  • Anti-inflammatory medicines (corticosteroids).
  • Medicines used to increase urine elimination: Thiazide diuretics.
  • Medicines used to treat heart diseases: Cardiac glycosides such as digoxin.
  • Antacid and anti-ulcer medicines (proton pump inhibitors, H2 antihistamines), the intake of both should be separated by at least 2 hours.
  • Medicines based on licorice.
  • Other laxatives.

Interference with diagnostic tests:

  • When taking this medicine, blood glucose levels may rise, so diabetic patients should take this into account.
  • Taking this medicine can also interfere with the results of analytical tests, due to the fact that prolonged use of laxatives can lead to a decrease in potassium in the blood (hypokalemia).

Taking DulcoLax with food and drinks

Do not take licorice while taking this medicine.

Avoid taking DulcoLax simultaneously with milk, or at least separate the intake by 2 hours, as the absorption of this medicine may increase if taken at the same time.

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 taking this medicine.

Driving and using machines

During the use of this type of laxative due to a vasovagal response (e.g., abdominal spasms), you may experience dizziness and/or fainting. If you experience abdominal spasms, you should avoid potentially hazardous tasks such as driving or operating machinery.

DulcoLax contains sucrose, lactose, and castor oil

This medicine contains sucrose and lactose. If your doctor has told you that you have an intolerance to certain sugars, consult with them before taking this medicine.

This medicine may cause stomach upset and diarrhea because it contains castor oil.

3. How to take DulcoLax

Follow the instructions for administration of this medicine contained in this leaflet or as indicated by your doctor or pharmacist. In case of doubt, consult your doctor or pharmacist again.

The recommended dose in adults is:

1 tablet (5 mg of bisacodyl) per day before bedtime. If necessary, 2 tablets will be taken.

Always use the lowest effective dose.

Use in children and adolescents

The recommended dose for adolescents and children over 10 years old is 1 tablet (5 mg of bisacodyl) per day before bedtime. If necessary, 2 tablets will be taken.

Always use the lowest effective dose.

Children from 2 to 10 years old

Children from 2 to 10 years old can only take this medicine under medical supervision.

1 tablet (5 mg of bisacodyl) per day before bedtime.

Children under 2 years old

Children under 2 years old cannot take this medicine; it is contraindicated in them.

How to take:

This medicine is taken orally.

It is recommended to swallow the tablet whole, without chewing, and with plenty of liquid, at night or in the morning on an empty stomach. If taken at night, defecation will occur approximately in 10 hours. If taken in the morning on an empty stomach, defecation will occur approximately in 6 hours.

If your symptoms worsen, if you do not have a bowel movement after 12 hours after taking the maximum daily dose, or if your symptoms persist for more than 7 days of treatment, you should consult a doctor.

If you take more DulcoLax than you should

If you have taken more DulcoLax than you should, consult your doctor or pharmacist immediately.

The most frequent symptoms of overdose are: abdominal cramps, vomiting, mucous and diarrheal stools, and loss of fluid, potassium, and other electrolytes, fatigue or weakness.

Treatment in these cases will consist of suspending the administration of the laxative and subsequent rehydration with saline solution, liquids, and the administration of mineral salts. These measures are especially important in the elderly and young.

In case of overdose or accidental ingestion, consult your doctor or call the Toxicology Information Service (telephone: 91 562 04 20), indicating the medicine and the amount ingested.

Medicine questions

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4. Possible side effects

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

During the period of use of medicines with bisacodyl, the following side effects have been observed, whose frequency could not be established with precision. The most frequent side effects are abdominal pain and diarrhea. The following can occur: abdominal discomfort, anorectal discomfort, digestive disorders such as abdominal pain or cramps (which can be associated with nausea and/or vomiting), bloody stools (hematochezia), flatulence, abdominal distension, increased slowness of intestinal movement, and colitis. Less frequently, allergic reactions, skin rashes, dehydration, and swelling of the face, lips, mouth, tongue, or throat that can cause difficulty swallowing or breathing (angioedema) can also occur.

Taking medicines with bisacodyl, the active ingredient of this medicine, for long periods of time, can cause increased water loss, potassium, and other salts. This can lead to alterations in cardiac function, muscle weakness, and fatigue, especially if taken at the same time as diuretic and corticosteroid medicines.

Additionally, cases of dizziness and fainting have been reported. Dizziness and fainting that occur after taking medicines with bisacodyl may be due to a vasovagal response (e.g., abdominal spasm, defecation).

Reporting of side effects:

If you experience any type of side effect, consult your doctor or pharmacist, even if it is a possible side effect that does not appear in this leaflet. You can also report them directly through the Spanish Pharmacovigilance System for Human Use Medicines: https://www.notificaram.es. By reporting side effects, you can help provide more information on the safety of this medicine.

5. Storage of DulcoLax

Keep this medicine out of the sight and reach of children.

No special storage conditions are required.

Expiry date

Do not use this medicine after the expiry date stated on the packaging after EXP. The expiry date is the last day of the month indicated.

Medicines should not be disposed of via wastewater or household waste. Place the packaging and any unused medicine in the SIGRE collection point at the pharmacy. If in doubt, consult your pharmacist how to dispose of the packaging and any unused medicine. This will help protect the environment.

6. Contents of the pack and further information

Composition of DulcoLax

  • The active ingredient is bisacodyl. Each gastro-resistant tablet contains 5 mg of bisacodyl.
  • The other ingredients (excipients) are: sucrose, lactose, corn starch, glycerol (E-422), magnesium stearate, talc, gum arabic, titanium dioxide (E-171), methacrylic acid copolymer, and methacrylate copolymer (1:1), castor oil, macrogol 6000, yellow iron oxide (E-172), white wax, carnauba wax, and shellac.

Appearance of the product and pack contents

DulcoLax are round, yellow-brown, gastro-resistant tablets (resistant to gastric juice to act where necessary, in the intestine).

They are presented in packs containing 30 gastro-resistant tablets.

Marketing authorisation holder:

Opella Healthcare Spain, S.L.

C/ Rosselló i Porcel, 21

08016 – Barcelona

Spain

Sanofi Group

Manufacturer:

DELPHARM REIMS

10, Rue Colonel Charbonneaux

51100 Reims – France

Date of last revision of this leaflet:08/2019

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

Other additional information for the patient:

DulcoLax is also available on the market in the following forms:

Suppositories: DulcoLax bisacodyl 10 mg suppositories

Oral drops: Dulcolax picosulfate 7.5 mg/ml oral drops

Online doctors for DULCOLAX BISACODYL 5 mg GASTRO-RESISTANT TABLETS

Discuss questions about DULCOLAX BISACODYL 5 mg GASTRO-RESISTANT TABLETS, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

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Tomasz Grzelewski

Dermatology 21 years exp.

Dr Tomasz Grzelewski is an MD, PhD specialist in allergy, paediatrics, general practice and sports medicine, with a clinical focus on dermatology, endocrinology, allergology and sports-related health. He has more than 20 years of clinical experience and completed his medical training at the Medical University of Łódź, where he defended his PhD thesis with distinction. His doctoral research was recognised by the Polish Society of Allergology for its innovative contribution to the field. Throughout his career, he has gained extensive expertise in diagnosing and managing a wide range of allergic and paediatric conditions, including modern allergen desensitisation techniques. For five years, Dr Grzelewski served as the Head of two paediatric departments in Poland, managing complex clinical cases and leading multidisciplinary teams. He also worked in medical centres in the United Kingdom, gaining experience across both primary care and specialist environments. With over a decade of telemedicine experience, he has provided online consultations across Europe and is valued for his clear, structured and evidence-based medical guidance. Dr Grzelewski is actively involved in clinical programmes focused on modern anti-allergic therapies. As a Principal Investigator, he leads research projects on sublingual and oral allergen desensitisation, supporting evidence-based progress in allergy treatment for both children and adults. In addition to his background in allergology and paediatrics, he completed dermatology studies through the Cambridge Education Group (Royal College of Physicians of Ireland) and a Clinical Endocrinology course at Harvard Medical School. This advanced training enhances his ability to manage skin manifestations of allergies, atopic conditions, urticaria, endocrine-related symptoms and complex immunological reactions. Patients commonly seek his care for: 

  • seasonal and perennial allergies
  • allergic rhinitis and chronic nasal symptoms
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  • food and medication allergies
  • urticaria, atopic dermatitis and skin reactions
  • recurrent infections in children
  • sports-related health questions
  • general family medicine concerns

Dr Tomasz Grzelewski is known for his clear communication style, structured medical approach and ability to explain treatment options in a concise and accessible way. His multidisciplinary background across allergy, paediatrics, dermatology and endocrinology allows him to provide safe, up-to-date and comprehensive care for patients of all ages.

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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.

Areas of medical care include:

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  • Digestive issues: gastritis, acid reflux (GERD), IBS, dyspepsia, bloating, constipation, diarrhoea, functional bowel symptoms, intestinal infections.
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  • Chronic conditions: hypertension, diabetes, hypercholesterolemia, metabolic syndrome, thyroid disorders, excess weight.
  • Neurological and general symptoms: headache, migraine, dizziness, fatigue, sleep disturbances, reduced concentration, anxiety, asthenia.
  • Chronic pain support: back, neck, joint, and muscle pain, tension syndromes, pain associated with osteochondrosis and chronic conditions.

Additional care areas:

  • Preventive consultations and check-up planning.
  • Medical advice and follow-up consultations.
  • Test interpretation and diagnostic guidance.
  • Structured support for undiagnosed complaints.
  • Second opinion on diagnoses and treatment plans.
  • Nutritional and lifestyle support for vitamin deficiencies, anaemia, metabolic issues.
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  • Immunity support and strategies to reduce frequency of infections.

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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Alina Tsurkan

Family medicine 13 years exp.

Dr. Alina Tsurkan is a licensed family medicine physician based in Portugal, offering online consultations for adults and children. She provides professional primary care, with a focus on prevention, accurate diagnosis, and long-term management of acute and chronic conditions.

Dr. Tsurkan supports patients with a wide range of health issues, including:

  • Respiratory infections: cold, flu, bronchitis, pneumonia, and lingering coughs.
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  • Eye conditions: allergic or infectious conjunctivitis, red eyes, irritation.
  • Digestive issues: acid reflux (GERD), gastritis, irritable bowel syndrome (IBS), constipation, bloating, nausea.
  • Urinary and reproductive health: urinary tract infections (UTIs), cystitis, prevention of recurrent infections.
  • Chronic diseases: hypertension, elevated cholesterol, weight management.
  • Neurological complaints: headaches, migraines, sleep disturbances, fatigue, general weakness.
  • Children’s health: fever, infections, digestive issues, follow-ups, vaccination guidance.

She also provides:

  • IMT medical certificates for driving licence exchange in Portugal.
  • Personalised preventive care and wellness consultations.
  • Interpretation of test results and medical reports.
  • Follow-up care and medication review.
  • Support in managing multiple coexisting conditions.
  • Remote prescription management and medical documentation.

Dr. Tsurkan’s approach is evidence-based and holistic. She works closely with each patient to develop an individualised care plan that addresses both symptoms and root causes. Her goal is to empower patients to take control of their health and maintain well-being through lifestyle adjustments, routine check-ups, and early intervention.

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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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  • Chest pain, shortness of breath, arrhythmias (tachycardia, bradycardia, palpitations).
  • Leg swelling, chronic fatigue, reduced exercise tolerance.
  • EKG interpretation, lipid profile evaluation, cardiovascular risk assessment (heart attack, stroke).
  • Post-COVID-19 cardiac monitoring and care.
Endocrinology – Diabetes, thyroid, metabolism:
  • Diagnosis and management of type 1 and type 2 diabetes, and prediabetes.
  • Individual treatment plans including oral medications and insulin therapy.
  • GLP-1 therapy– modern pharmacological treatment for weight management and diabetes control, including drug selection, monitoring, and safety follow-up.
  • Thyroid disorders – hypothyroidism, hyperthyroidism, autoimmune thyroid diseases (Hashimoto’s, Graves’ disease).
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Gastroenterology – Digestive health:
  • Abdominal pain, nausea, heartburn, gastroesophageal reflux (GERD).
  • 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:
  • Respiratory infections – cough, colds, bronchitis.
  • Lab test analysis, therapy adjustments, medication management.
  • Adult vaccinations – planning, contraindications assessment.
  • Cancer prevention – screening strategies and risk assessment.
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Dr Biriukova combines internal medicine with specialist insight, offering clear explanations, personalised treatment plans, and comprehensive care tailored to each patient.
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€60

Frequently Asked Questions

Is a prescription required for DULCOLAX BISACODYL 5 mg GASTRO-RESISTANT TABLETS?
DULCOLAX BISACODYL 5 mg GASTRO-RESISTANT TABLETS does not require 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 DULCOLAX BISACODYL 5 mg GASTRO-RESISTANT TABLETS?
The active ingredient in DULCOLAX BISACODYL 5 mg GASTRO-RESISTANT TABLETS is bisacodyl. This information helps identify medicines with the same composition but different brand names.
Who manufactures DULCOLAX BISACODYL 5 mg GASTRO-RESISTANT TABLETS?
DULCOLAX BISACODYL 5 mg GASTRO-RESISTANT TABLETS is manufactured by Opella Healthcare Spain S.L.. Pharmacy brands and packaging may differ depending on the distributor.
Which doctors can assess the use of DULCOLAX BISACODYL 5 mg GASTRO-RESISTANT 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 DULCOLAX BISACODYL 5 mg GASTRO-RESISTANT TABLETS is appropriate, depending on your situation and local regulations. You can book an online consultation to discuss your symptoms and possible next steps.
What are the alternatives to DULCOLAX BISACODYL 5 mg GASTRO-RESISTANT TABLETS?
Other medicines with the same active substance (bisacodyl) include BEKUNIS 5 mg GASTRO-RESISTANT TABLETS, DULCOLAX BISACODYL 10 mg SUPPOSITORIES, CASTOR OIL REIG JOFRE 1g/ml ORAL LIQUID. 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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