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MICRALAX CITRATE/LAURYL SULFOACETATE 450 mg/45 mg rectal solution

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About the medicine

How to use MICRALAX CITRATE/LAURYL SULFOACETATE 450 mg/45 mg rectal solution

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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

MICRALAX CITRATE/LAURYL SULFOACETATE 450mg/45mg rectal solution

Sodium citrate/ Sodium lauryl sulfoacetate

Read the package leaflet carefully before you start using this medicine because it contains important information for you.

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

  • Keep this package 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 package leaflet. See section 4.
  • You should consult a doctor if your condition worsens or does not improve after 6 days of treatment.

Contents of the package leaflet:

  1. What Micralax Citrate/Lauryl sulfoacetate is and what it is used for.
  2. What you need to know before you start using Micralax Citrate/Lauryl sulfoacetate.
  3. How to use Micralax Citrate/Lauryl sulfoacetate
  4. Possible side effects.
  5. Storage of Micralax Citrate/Lauryl sulfoacetate
  6. Package contents and additional information

1. What Micralax Citrate/Lauryl sulfoacetate is and what it is used for

Micralax Citrate/Lauryl sulfoacetate acts as an osmotic laxative due to the combined action of sodium citrate, which acts by retaining liquid in the intestine, increasing the water volume in the stool, and sodium lauryl sulfoacetate, a humectant agent.

It is indicated for the local symptomatic relief of occasional constipation in adults and adolescents over 12 years of age.

You should consult a doctor if your condition worsens or does not improve after 6 days of treatment.

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 you start using Micralax Citrate/Lauryl sulfoacetate

Do not use Micralax Citrate/Lauryl sulfoacetate:

  • If you are allergic to sodium citrate/lauryl sulfoacetate or any of the other components of this medicine (listed in section 6).
  • If you have hemorrhoids.
  • If you have hemorrhagic colitis.

Warnings and precautions

In case of no improvement, worsening, or appearance of blood in stool, irritation, pain, you should interrupt treatment and consult your doctor.

Do not use this medicine for more than 6 consecutive days, unless your doctor indicates otherwise.

Children and adolescents

It should not be used in children under 12 years of age, unless your doctor considers it necessary.

Other medicines and Micralax Citrate/Lauryl sulfoacetate

Inform your doctor or pharmacist that you are using, have recently used, or may need to use any other medicine.

If you are being treated to lower your blood calcium level with a medicine that contains sodium polystyrene sulfonate, do not use Micralax, as intestinal necrosis may occur.

SODIUM POLYSTYRENE SULFONATE:

Isolated cases of ileocecal perforation and colon necrosis have been reported in patients treated for hyperkalemia.

Patients taking sorbitol are advised to consult their doctor before using this medicine.

Using Micralax Citrate/Lauryl sulfoacetate with food and drinks

Taking food and drinks does not affect the efficacy of this medicine.

Pregnancy and breastfeeding

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

Driving and using machines

Using this medicine does not affect your ability to drive or use machines.

Micralax contains sorbic acid

This medicine may cause local skin reactions (such as contact dermatitis) because it contains sorbic acid.

3. How to use Micralax Citrate/Lauryl sulfoacetate

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

The recommended dose in adults and adolescents over 12 years of age is 1 applicator per day.

Do not use this medicine for more than 6 consecutive days.

Method of administration

This medicine is used rectally.

At the chosen time for bowel movement, and once the cap of the package that closes the end of the applicator is removed, place it in a vertical position with the tip upwards and press it slightly so that a few drops of Micralax moisten the end of the applicator, in order to facilitate its introduction into the rectum. Once introduced, squeeze the walls of the applicator until its contents are completely emptied and remove it gently without stopping the pressure.

Hold back the bowel movement for as long as possible so that the medicine can take effect.

Use in children

It should not be used in children under 12 years of age, unless your doctor considers it necessary.

If you use more Micralax Citrate/Lauryl sulfoacetate than you should

Due to the type of medicine, it is unlikely that intoxication will occur.

In case of overdose or accidental ingestion, consult your doctor or pharmacist immediately or call the Toxicology Information Service, phone 91. 562.04.20 (indicating the medicine and the amount ingested).

Medicine questions

Started taking the medicine and have questions?

Discuss your symptoms and treatment with a doctor online.

4. Possible side effects

Like all medicines, Micralax Citrate/Lauryl sulfoacetate can cause side effects, although not everybody gets them.

Very rare side effects (may affect up to 1 in 10,000 people): abdominal pain, anorectal discomfort, diarrheal stools, and allergic reactions (hives).

Reporting side effects:

If you experience any side effects, consult your doctor or pharmacist, even if they are not listed in this package leaflet. You can also report them directly through the Spanish Medicines Monitoring System: https://www.notificaram.es. By reporting side effects, you can help provide more information on the safety of this medicine.

5. Storage of Micralax Citrate/Lauryl sulfoacetate

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

No special storage conditions are required.

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

Medicines should not be disposed of via wastewater or household waste. Dispose of the packages and medicines you no longer need in the pharmacy's SIGRE point. If in doubt, ask your pharmacist how to dispose of the packages and medicines you no longer need. This will help protect the environment.

6. Package contents and additional information

Composition of Micralax Citrate/Lauryl sulfoacetate

The active ingredients are: sodium citrate (450 mg per applicator) and sodium lauryl sulfoacetate (45 mg per applicator).

The other ingredients (excipients) are: sorbitol (E-420), glycerol (E-422), sorbic acid (E-200), and purified water.

Appearance of the product and package contents

Viscous rectal solution presented in 5 ml capacity applicators.

It is presented in boxes containing 4 and 12 applicators.

Marketing authorization holder and manufacturer:

Marketing authorization holder:

JNTL Consumer Health (Spain), S.L.

C/ Vía de los Poblados 1, Edificio E, planta 3

28033-Madrid

Spain

Manufacturer:

DELPHARM ORLEANS

5, Avenue de Concyr

45071 Orleans Cedex 2, (France)

Or

JNTL Consumer Health (France) S.A.S.

Domaine de Maigremont

F27100 Val de Reuil FRANCE

Date of the last revision of this package leaflet: March 2020

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/

Online doctors for MICRALAX CITRATE/LAURYL SULFOACETATE 450 mg/45 mg rectal solution

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Doctor

Dmytro Horobets

Family medicine 7 years exp.

Dr. Dmytro Horobets is a licensed family medicine physician in Poland, specialising in endocrinology, diabetology, obesity management, gastroenterology, pediatrics, general surgery, and pain medicine. He offers online consultations for adults and children, providing personalised medical support for a wide range of acute and chronic health concerns.

Areas of expertise:

  • Endocrinology: diabetes type 1 and type 2, prediabetes, thyroid disorders, metabolic syndrome, hormonal imbalance.
  • Obesity medicine: structured weight management plans, nutritional counselling, obesity-related health risks.
  • Gastroenterology: acid reflux (GERD), gastritis, irritable bowel syndrome (IBS), liver and biliary conditions.
  • Pediatric care: infections, respiratory symptoms, digestive issues, growth and development monitoring.
  • General surgery support: pre- and post-surgical consultations, wound care, rehabilitation.
  • Pain management: chronic and acute pain, back pain, joint pain, post-traumatic pain syndromes.
  • Cardiovascular health: hypertension, cholesterol control, risk assessment for heart disease.
  • Preventive medicine: regular check-ups, health screenings, long-term management of chronic conditions.

Dr. Horobets combines evidence-based medicine with a patient-centred approach. He carefully evaluates each patient’s medical history and symptoms, offering clear explanations and structured treatment plans adapted to individual needs.

Whether you need help managing diabetes, tackling weight-related health issues, interpreting lab results, or receiving general family medicine support, Dr. Horobets provides professional online care tailored to your specific health goals.

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Andrei Popov

General medicine 7 years exp.

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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Doctor

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
  • asthma and breathing difficulties
  • 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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Doctor

Joao Silva

General medicine 6 years exp.

Dr. João Silva is a physician with training and experience in the field of General and Family Medicine, dedicated to providing healthcare focused on the well-being and quality of life of his patients. Throughout his professional career, he has developed broad clinical competencies, striving to maintain a medical practice based on scientific evidence and continuous knowledge updates.

Between 2013 and 2019, he completed the Integrated Master's Degree in Medicine at the Abel Salazar Institute of Biomedical Sciences in Porto, where he acquired a solid academic and clinical education.

Subsequently, between January 2021 and December 2021, he completed the General Internship at the Entre Douro e Vouga Hospital Center in Santa Maria da Feira, where he had the opportunity to work in different hospital settings and deepen his competencies in several areas of medicine.

From January 2022 until March 2026, he works as a Resident Physician in General and Family Medicine at USF Salvador Machado in Oliveira de Azeméis, developing clinical activities in primary healthcare, follow-up of chronic patients, and health promotion in the community.

Complementing his medical training, Dr. João Silva also completed a Postgraduate Degree in Continuing and Palliative Care at CESPU, strengthening his preparation in the comprehensive approach to patient care, especially in situations requiring prolonged care and multidisciplinary support.

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Doctor

Sviatoslav Chekhun

Oncology 13 years exp.

Dr. Sviatoslav Chekhun is a medical oncologist with international clinical and research experience, specializing in modern medical oncology and a personalized approach to cancer treatment.

Currently (since 2025), he works as a Medical Oncologist at Institut Català d’Oncologia (Girona, Spain). Previously, he completed his residency in Medical Oncology and was involved in clinical research at Hospital Universitari Germans Trias i Pujol.

Dr. Chekhun has a strong academic and scientific background. He served as a lecturer in Internal Medicine at O.O. Bohomolets National Medical University and conducted research in experimental oncology at the R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology.

Earlier in his career, he worked as a medical oncologist at the Kyiv City Clinical Oncological Center and contributed to regulatory evaluation of medicinal products at the State Expert Center of the Ministry of Health of Ukraine.

When to consult Dr. Chekhun:

  •  for diagnosis or clarification of a cancer diagnosis
  •  to obtain a second opinion on an existing treatment plan 
  •  when you need a personalized treatment strategy 
  •  for interpretation of test results, CT, MRI, PET-CT, and biopsies 
  •  when choosing between treatment options (chemotherapy, targeted therapy, immunotherapy) 
  •  in case of doubts about treatment strategy or disease progression 

Consultation format

Dr. Chekhun provides online consultations, where you can receive:

  •  expert second opinion 
  •  detailed case review 
  •  recommendations based on current international treatment guidelines 
  •  personalized treatment and follow-up plan 

Important:
Prescription and monitoring of medications must be carried out by your treating physician in an in-person (offline) setting. An online consultation does not replace a face-to-face visit but helps you make more informed decisions about your treatment.

Dr. Sviatoslav Chekhun combines clinical practice, research, and international experience, enabling him to provide patients with modern, evidence-based approaches in oncology.

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Frequently Asked Questions

Is a prescription required for MICRALAX CITRATE/LAURYL SULFOACETATE 450 mg/45 mg rectal solution?
MICRALAX CITRATE/LAURYL SULFOACETATE 450 mg/45 mg rectal solution 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 MICRALAX CITRATE/LAURYL SULFOACETATE 450 mg/45 mg rectal solution?
The active ingredient in MICRALAX CITRATE/LAURYL SULFOACETATE 450 mg/45 mg rectal solution is sodium lauryl sulfoacetate, incl. combinations. This information helps identify medicines with the same composition but different brand names.
Who manufactures MICRALAX CITRATE/LAURYL SULFOACETATE 450 mg/45 mg rectal solution?
MICRALAX CITRATE/LAURYL SULFOACETATE 450 mg/45 mg rectal solution is manufactured by Jntl Consumer Health (Spain) S.L.. Pharmacy brands and packaging may differ depending on the distributor.
Which doctors can assess the use of MICRALAX CITRATE/LAURYL SULFOACETATE 450 mg/45 mg rectal solution 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 MICRALAX CITRATE/LAURYL SULFOACETATE 450 mg/45 mg rectal solution 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 MICRALAX CITRATE/LAURYL SULFOACETATE 450 mg/45 mg rectal solution?
Other medicines with the same active substance (sodium lauryl sulfoacetate, incl. combinations) include CLISTERAN 450 mg/45 mg RECTAL SOLUTION, ADULAX 7.5 G RECTAL SOLUTION, ENEMA CASEN 139 mg/ml + 32 mg/ml RECTAL SOLUTION. 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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