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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/

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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 
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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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Yevgen Yakovenko

General surgery 12 years exp.

Dr. Yevgen Yakovenko is a licensed surgeon and general practitioner in Spain and Germany. He specialises in general, paediatric, and oncological surgery, internal medicine, and pain management. He offers online consultations for adults and children, combining surgical precision with therapeutic support. Dr Yakovenko works with patients across different countries and provides care in Ukrainian, Russian, English, and Spanish.

Areas of medical expertise:

  • Acute and chronic pain: headaches, muscle and joint pain, back pain, abdominal pain, postoperative pain. Identifying the cause, selecting treatment, and creating a care plan.
  • Internal medicine: heart, lungs, gastrointestinal tract, urinary system. Management of chronic conditions, symptom control, second opinions.
  • Pre- and postoperative care: risk assessment, decision-making support, follow-up after surgery, rehabilitation strategies.
  • General and paediatric surgery: hernias, appendicitis, congenital conditions, both planned and urgent surgeries.
  • Injuries and trauma: bruises, fractures, sprains, soft tissue damage, wound care, dressing, referral when in-person care is required.
  • Oncological surgery: diagnosis review, treatment planning, and long-term follow-up.
  • Obesity treatment and weight management: a medical approach to weight loss, including assessment of underlying causes, evaluation of comorbidities, development of a personalised plan (nutrition, physical activity, pharmacotherapy if needed), and ongoing progress monitoring.
  • Imaging interpretation: analysis of ultrasound, CT, MRI, and X-ray results, surgical planning based on imaging data.
  • Second opinions and medical navigation: clarifying diagnoses, reviewing current treatment plans, helping patients choose the best course of action.

Experience and qualifications:

  • 12+ years of clinical experience in university hospitals in Germany and Spain.
  • International education: Ukraine – Germany – Spain.
  • Member of the German Society of Surgeons (BDC).
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Dr Yakovenko explains complex topics in a clear, accessible way. He works collaboratively with patients to analyse health issues and make evidence-based decisions. His approach is grounded in clinical excellence, scientific accuracy, and respect for each individual.

If you are unsure about a diagnosis, preparing for surgery, or want to discuss your test results – Dr Yakovenko will help you evaluate your options and move forward with confidence.

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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:

  • Respiratory conditions: colds, flu, acute and chronic bronchitis, mild to moderate pneumonia, bronchial asthma.
  • ENT and eye conditions: sinusitis, tonsillitis, pharyngitis, otitis, infectious and allergic conjunctivitis.
  • Digestive issues: gastritis, acid reflux (GERD), IBS, dyspepsia, bloating, constipation, diarrhoea, functional bowel symptoms, intestinal infections.
  • Urological and infectious diseases: acute and recurrent cystitis, bladder and kidney infections, prevention of recurrent UTIs, asymptomatic bacteriuria.
  • 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.
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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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  • Preconception counselling and postpartum support.
  • 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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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:

  • High blood pressure, blood pressure fluctuations, and cardiovascular risk prevention.
  • Chest pain, shortness of breath, arrhythmias (tachycardia, bradycardia, palpitations).
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  • 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).
  • Metabolic syndrome – obesity, lipid disorders, insulin resistance.
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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Alexander Nazarchuk

Allergology 7 years exp.

Dr. Alexander Nazarchuk is a physician specialising in allergology and internal medicine. He provides online consultations for adults, following the principles of evidence-based medicine — no outdated treatments or unnecessary tests, with clear explanations and a personalised approach. He helps patients with a wide range of allergic and therapeutic conditions, from common day-to-day complaints to complex cases involving allergies, gastrointestinal issues, cardiovascular concerns, respiratory symptoms, and more.

You can consult Dr. Nazarchuk for:

  • Test interpretation and guidance on diagnostic plans.
  • Allergic rhinitis, hay fever, bronchial asthma (including severe cases).
  • Food and drug allergies, skin rashes, angioedema.
  • Atopic dermatitis, urticaria, contact allergies.
  • Allergen-specific immunotherapy (AIT) – initiation and ongoing management.
  • Abdominal pain, bloating, changes in bowel habits, nausea, heartburn.
  • High blood pressure and adjustment of baseline antihypertensive therapy.
  • Hyperlipidaemia and elevated cholesterol.
  • Cough, nasal congestion, fever, sore throat.
  • Anaemia, including iron deficiency and related conditions.
  • Other issues related to allergology and internal medicine.

During consultations, Dr. Nazarchuk takes a thorough, structured approach — analysing symptoms, identifying potential causes, and helping patients make informed decisions. Whether treatment, further investigation, or monitoring is needed, he explains each step clearly so you understand your health and how best to manage it.

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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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