Bg pattern

CASENLAX 4 g ORAL SOLUTION POWDER IN SACHETS

Prescription review online

Prescription review online

A doctor will review your case and decide whether a prescription is medically appropriate.

Talk to a doctor about this medicine

Talk to a doctor about this medicine

Discuss your symptoms and possible next steps in a quick online consultation.

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 CASENLAX 4 g ORAL SOLUTION POWDER IN SACHETS

Translated with AI

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.

Show original

Introduction

Package Leaflet: Information for the User

Casenlax 4 g, Powder for Oral Solution in Sachets

Macrogol 4000.

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

  • Keep this leaflet, you may need to read it again.
  • If you have any further questions, ask your doctor, pharmacist, or nurse.
  • This medicine has been prescribed for you only. Do not pass it on to others. It may harm them, even if their symptoms are the same as yours.
  • If you experience any side effects, talk to your doctor, pharmacist, or nurse. This includes any possible side effects not listed in this leaflet. See section 4.

Contents of the Package Leaflet

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

1. What is Casenlax and what is it used for

The name of this medicine is Casenlax 4g powder for oral solution in sachet.

Casenlax belongs to a group of medicines called osmotic laxatives. Osmotic laxatives are medicines that allow the amount of water in the stool to increase, making it easier to pass.

Casenlax is indicated for the symptomatic treatment of constipation in children from 6 months to 8 years. It should be used in conjunction with appropriate lifestyle changes and a suitable diet (see section 2).

You should consult your doctor if it worsens or does not improve.

This medicine contains Macrogol (PEG = Polyethylene Glycol).

In the case of constipation, the maximum treatment period in children is 3 months.

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 take Casenlax

Treatment of constipation with a laxative should be complementary to a healthy lifestyle and diet.

Do not take Casenlax

  • If your child is allergic to macrogol (PEG = polyethylene glycol) or any of the other ingredients of this medicine (listed in section 6).
  • If your child has a disease that affects the intestine or colon (such as ulcerative colitis, Crohn's disease).
  • If your child has abdominal pain of unknown cause.
  • If your child has, suspects that they have, or may be at risk of having a gastrointestinal perforation.
  • If your child has or suspects that they may have an intestinal obstruction.

Warnings and precautions

Consult your doctor, pharmacist, or nurse before starting to take Casenlax.

In the event of diarrhea, after treatment with Casenlax, some patients may develop electrolyte disorders (decrease in sodium and other salts in the blood), mainly elderly people, those with liver or kidney problems, or those taking diuretics (medicines that facilitate the elimination of fluids). If you are one of these people and experience diarrhea, you should visit your doctor to review your electrolyte levels with a blood test.

Children

Ask your doctor before administering this treatment to your child, to rule out that the constipation is caused by an organic problem.

After 3 months of treatment, your doctor should evaluate your child's clinical condition.

Use of Casenlax with other medicines

Casenlax may delay the absorption of other medicines, making them less effective or ineffective, especially those with a narrow therapeutic index (e.g., antiepileptics, digoxin, and immunosuppressants). Inform your doctor or pharmacist if you are using or have recently used or may need to use any other medicine.

Pregnancy, breastfeeding, and fertility

If you are pregnant or breastfeeding, think you may be pregnant, or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.

Pregnancy

Casenlax can be taken during pregnancy.

Breastfeeding

Casenlax can be taken during breastfeeding.

Driving and using machines

Casenlax does not affect the ability to drive and use machines.

Casenlax contains sulfur dioxide.

This medicine can rarely cause severe allergic reactions and bronchospasm (sudden feeling of suffocation) because it contains sulfur dioxide.

Casenlax contains sodium

This medicine contains less than 1 mmol of sodium (23 mg) per sachet; it is essentially "sodium-free".

Casenlax contains an insignificant amount of sugars or polyols and can be prescribed to diabetic patients or patients with a galactose-free diet.

3. How to take Casenlax

Follow exactly the administration instructions of this medicine indicated by your doctor or pharmacist. In case of doubt, consult your doctor or pharmacist again.

Oral route.

The recommended dose is:

Children from 6 months to 1 year: 1 sachet per day.

Children from 1 to 4 years: 1 to 2 sachets per day.

Children from 4 to 8 years: 2 to 4 sachets per day.

Treatment should be administered in the morning in the case of 1 sachet per day, or divided between morning and evening in the case of higher doses. It is recommended to drink 125 ml of liquids (e.g., water) after each dose.

The daily dose should be adapted according to the clinical effects obtained.

The effect of Casenlax occurs 24-48 hours after its administration.

Dissolve the contents of the sachet in a glass of water (at least 50 ml) immediately before administration and drink the liquid. The resulting solution will be clear and transparent like water.

The improvement in intestinal transit after administration of Casenlax will be maintained by following a healthy lifestyle and diet.

Use in children and adolescents

In children, treatment should not exceed 3 months due to the lack of clinical trials for more than 3 months of treatment.

Treatment should be gradually discontinued and resumed if constipation recurs.

If you take more Casenlax than you should

It may cause diarrhea, abdominal pain, and vomiting that disappears when treatment is temporarily interrupted or the dose is reduced.

If you experience significant diarrhea or vomiting, you should contact your doctor as soon as possible, as you may need treatment to prevent loss of salts (electrolytes) due to fluid loss.

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).

If you forget to take Casenlax

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

The most serious side effects are allergic reactions (hypersensitivity) that include itching (hives), rash, facial edema (inflammation of the face), Quincke's edema (rapid inflammation of the inner layers of the skin), urticaria, and anaphylactic shock. The frequency of these side effects has been described as unknown frequency (cannot be estimated from the available data) in the pediatric population and as very rare frequency (may affect up to 1 in 10,000 patients) in adults. If you notice any of the reactions described above, please do not continue taking this medicine and contact your doctor immediately.

Adults:side effects have generally been mild and transient and are mainly related to the gastrointestinal system. These side effects include:

Common (may affect up to 1 in 10 people)

  • Abdominal pain
  • Abdominal distension
  • Diarrhea
  • Nausea

Uncommon (may affect up to 1 in 100 people)

  • Vomiting
  • Urgency to defecate
  • Fecal incontinence

Unknown frequency (cannot be estimated from the available data)

  • Electrolyte disorders (low levels of sodium and potassium in the blood: hyponatremia, hypokalemia)
  • Dehydration, caused by severe diarrhea, especially in elderly patients.
  • Erythema

Children:side effects have generally been mild and transient and are mainly related to the gastrointestinal system. These side effects include:

  • Common (may affect up to 1 in 10 people)
    • Abdominal pain
    • Diarrhea (may cause perianal pain)
  • Uncommon (may affect up to 1 in 100 people)
    • Vomiting
    • Bloating
    • Nausea

Excessive doses may cause diarrhea, abdominal pain, and vomiting that usually disappear when the dose is reduced or treatment is temporarily interrupted.

Reporting of side effects

If you experience any side effects, talk to your doctor, pharmacist, or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly through the Spanish Pharmacovigilance System for Human Use Medicines (www.notificaram.es). By reporting side effects, you can help provide more information on the safety of this medicine.

5. Storage of Casenlax

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

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

This medicine does not require any special storage conditions.

Do not use this medicine if you notice any visible signs of deterioration.

Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. These measures will help protect the environment.

6. Contents of the pack and further information

Composition of Casenlax

The active substance is:

Macrogol 4000

Each sachet contains 4g of macrogol 4000

The other ingredients are:

Sodium saccharin (E954) and strawberry flavor (maltodextrin, triethyl citrate E1505, arabic gum E414, sulfur dioxide E220, and acetic acid E260). See section 2 "Casenlax contains sulfur dioxide".

Appearance of the product and pack contents

Casenlax is a almost white powder with a strawberry odor contained in a sachet to make a solution.

It is available in packs of 10, 20, 30, or 50 sachets.

Not all pack sizes may be marketed.

Marketing authorization holder and manufacturer

Casen Recordati, S.L.

Autovía de Logroño, km 13.300

50180 UTEBO. Zaragoza (Spain)

This medicine is authorized in the EEA member states with the following names:

Germany: Laxbene Junior 4 g Pulver zur Herstellung einer Lösung zum Einnehmen, in Einzeldosis-Beuteln, für Kinder von 6 Monaten bis 8 Jahre

Denmark: Casenlax 4g pulver til oral opløsning i brev

Spain: Casenlax 4g polvo para solución oral

Finland: Casenlax 4g jauhe oraaliliuosta varten annospussi

Netherlands: Casenlax 4g poeder voor drank

Italy: Casenjunior 4 g polvere per soluzione orale in bustina monodose

Norway: Casenlax 4g pulver til mikstur oppløsning i dosepose

Portugal: Casenlax 4g pó para solução oral

Sweden: Casenlax 4g pulver till oral lösning i dospåse

Date of last revision of this leaflet: August 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 CASENLAX 4 g ORAL SOLUTION POWDER IN SACHETS

Discuss questions about CASENLAX 4 g ORAL SOLUTION POWDER IN SACHETS, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

5.0 (79)
Doctor

Nuno Tavares Lopes

Family medicine 18 years exp.

Dr. Nuno Tavares Lopes is a licensed physician in Portugal with 17 years of experience in emergency medicine, family and general practice, and public health. He is the Director of Medical and Public Health Services at an international healthcare network and serves as an external consultant for the WHO and ECDC.

  • Emergency care: infections, fever, chest/abdominal pain, minor injuries, paediatric emergencies
  • Family medicine: hypertension, diabetes, cholesterol, chronic disease management
  • Travel medicine: pre-travel advice, vaccinations, fit-to-fly certificates, travel-related illnesses
  • Sexual and reproductive health: PrEP, STD prevention, counselling, treatment
  • Weight management and wellness: personalised weight loss programmes, lifestyle guidance
  • Skin and ENT issues: acne, eczema, allergies, rashes, sore throat, sinusitis
  • Pain management: acute and chronic pain, post-surgical care
  • Public health: prevention, health screenings, long-term monitoring
  • Sick leave (Baixa médica) connected to Segurança Social in Portugal
  • IMT medical certificates for driving licence exchange
Dr. Nuno Tavares Lopes provides medical support for patients using GLP-1 medications (Mounjaro, Wegovy, Ozempic, Rybelsus) as part of a weight loss strategy. He offers individualised treatment planning, regular follow-up, dose adjustment, and advice on combining medication with sustainable lifestyle changes. Consultations follow the medical standards accepted in Europe.

Dr. Lopes also provides interpretation of medical tests, follow-up care for complex patients, and multilingual support. Whether for urgent concerns or long-term care, he helps patients act with clarity and confidence.

Camera Book a video appointment
€59
5.0 (19)
Doctor

Anastasiia Shalko

Family medicine 13 years exp.

Dr. Anastasiia Shalko is a general practitioner with a background in both paediatrics and general medicine. She graduated from Bogomolets National Medical University in Kyiv and completed her paediatric internship at the P.L. Shupyk National Medical Academy of Postgraduate Education. After working as a paediatrician in Kyiv, she relocated to Spain, where she has been practising general medicine since 2015, providing care for both adults and children.Her work focuses on urgent, short-term medical concerns – situations where patients need quick guidance, symptom assessment and clear next steps. She helps people understand whether their symptoms require in-person evaluation, home management or a change in treatment. Common reasons for booking an online consultation include:

  • acute respiratory symptoms (cough, sore throat, runny nose, fever)
  • viral illnesses such as colds and seasonal infections
  • gastrointestinal complaints (nausea, diarrhoea, abdominal pain, gastroenteritis)
  • sudden changes in how a child or adult feels
  • questions about existing treatment and whether adjustments are needed
  • renewal of prescriptions when clinically appropriate

Dr. Shalko works specifically with urgent and short-term problems, providing practical recommendations and helping patients determine the safest next step. She explains symptoms clearly, guides patients through decision-making and offers straightforward medical advice for everyday acute issues.She does not provide long-term management of chronic conditions, ongoing follow-up or comprehensive care plans for complex long-term illnesses. Her consultations are designed for acute symptoms, sudden concerns and situations where timely medical input is important.With clinical experience in both paediatrics and general medicine, Dr. Shalko confidently supports adults and children. Her communication style is clear, simple and reassuring, helping patients feel informed and supported throughout the consultation.

Camera Book a video appointment
€50
0.0 (0)
Doctor

Chikeluo Okeke

General medicine 4 years exp.

Dr Chikeluo Okeke is an internal medicine doctor with extensive international clinical experience. Originally from Nigeria, he has worked across multiple European healthcare systems and currently practises in Sweden. This professional path has given him a strong understanding of different medical approaches and the ability to work effectively with patients from diverse cultural and linguistic backgrounds.

Dr Okeke focuses on general internal medicine and adult primary care, combining clinical accuracy with careful attention to lifestyle, personal context, and everyday health concerns. His consultations are particularly well suited for people who seek medical advice online, live abroad, or need clear guidance without unnecessary complexity.

He provides online consultations covering symptom assessment, prevention, and long-term management of chronic conditions, helping patients understand what is happening and decide on appropriate next steps.

Common reasons for consultation:

  • General internal medicine concerns and initial health assessment.
  • Acute symptoms such as fever, cough, infections, pain, or weakness.
  • Chronic conditions and treatment adjustment.
  • Blood pressure issues, fatigue, metabolic concerns.
  • Preventive consultations and routine check-ups.
  • Interpretation of laboratory results and medical reports.
  • Medical advice for patients receiving care online.

Dr Okeke is known for his clear communication, calm approach, and cultural awareness. He listens carefully, explains medical decisions in a structured way, and supports patients in making informed choices about their health.

Online consultations with Dr Chikeluo Okeke offer reliable internal medicine care without geographic limitations, focused on medical relevance, clarity, and patient comfort.

Camera Book a video appointment
€60
5.0 (76)
Doctor

Tarek Agami

General medicine 11 years exp.

Dr. Tarek Agami is a general practitioner registered in both Portugal and Israel, with broad experience in family and preventive medicine. He offers online consultations for adults and children, providing personalised support for primary care needs, chronic disease management, and everyday health concerns.

Dr. Agami received clinical training and worked in leading medical institutions in Israel (Kaplan Medical Center, Barzilai Medical Center, Wolfson Medical Center) and Portugal (European Healthcare City, Viscura Internacional, Hospital Dr. José Maria Grande, Hospital Vila Franca de Xira). His approach combines international medical standards with individualised attention to each patient.

Main areas of consultation:

  • Diagnosis and treatment of acute and chronic conditions (high blood pressure, diabetes, respiratory infections, cardiovascular symptoms)
  • Evaluation of symptoms and guidance on further diagnostic testing
  • Preventive check-ups and regular health monitoring
  • Medical support during travel or after relocation
  • Treatment adjustments and lifestyle recommendations based on your personal history
Dr. Agami provides medical support for patients using GLP-1 medications (such as Ozempic or Mounjaro) as part of a weight loss strategy. He offers individualised treatment planning, regular follow-up, dose adjustment, and advice on combining medication with sustainable lifestyle changes. Consultations follow the medical standards accepted in Portugal and Israel.

Dr. Agami is committed to evidence-based, patient-centred care, ensuring that each person receives trusted medical support tailored to their health goals.

Camera Book a video appointment
€69
0.0 (0)
Doctor

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.

Online consultations with Dr. Lokchiri are suitable for many situations when someone needs quick medical guidance, reassurance or a clear next step. Common reasons for booking include:

  • fever, chills, fatigue and viral symptoms
  • cough, sore throat, nasal congestion, breathing discomfort
  • bronchitis and mild asthma flare-ups
  • nausea, diarrhoea, abdominal pain, digestive infections
  • rashes, allergic reactions, redness, insect bites
  • muscle or joint pain, mild injuries, sprains
  • headache, dizziness, migraine symptoms
  • stress-related symptoms, sleep disturbances
  • questions about test results and treatment plans
  • management of chronic conditions in stable phases
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.

Some situations are not suitable for online care. If a patient has loss of consciousness, severe chest pain, uncontrolled bleeding, seizures, major trauma or symptoms suggesting a stroke or heart attack, he will advise seeking immediate local emergency services. This improves safety and ensures patients receive the right level of care.

Dr. Lokchiri’s professional training includes:

  • Advanced Trauma Life Support (ATLS)
  • Basic and Advanced Cardiac Life Support (BLS/ACLS)
  • Pediatric Advanced Life Support (PALS)
  • Prehospital Trauma Life Support (PHTLS)
  • eFAST and critical care transthoracic echocardiography
  • aviation medicine
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.
Camera Book a video appointment
€58
0.0 (11)
Doctor

Daniel Cichi

Family medicine 24 years exp.

Dr Daniel Cichi is a family medicine doctor with over 20 years of clinical experience. He provides online consultations for adults, supporting patients with acute symptoms, chronic conditions, and everyday health concerns that require timely medical guidance. His background includes work in emergency care, ambulance services, and family medicine, which allows him to assess symptoms quickly, identify warning signs, and help patients choose the safest next steps – whether that means home care, treatment adjustment, or in-person evaluation. Patients commonly consult Dr Daniel Cichi for: 

  • acute symptoms: fever, infections, flu-like illness, cough, sore throat, shortness of breath;
  • chest discomfort, palpitations, dizziness, fatigue, and blood pressure concerns;
  • digestive problems: abdominal pain, nausea, diarrhoea, constipation, reflux;
  • sexually transmitted infections, erectile dysfunction;
  • muscle, joint, and back pain, minor injuries, post-traumatic symptoms;
  • chronic conditions: hypertension, diabetes, high cholesterol, thyroid disorders, weight loss, hair loss;
  • review and interpretation of lab tests, imaging reports, and medical documents;
  • medication review and treatment adjustment;
  • medical advice while travelling or living abroad;
  • second opinions and guidance on whether in-person care is needed.

Dr Cichi’s consultations are structured and practical. He focuses on clear explanations, risk assessment, and actionable recommendations, helping patients understand their symptoms and make informed decisions about their health.

Camera Book a video appointment
€55

Frequently Asked Questions

Is a prescription required for CASENLAX 4 g ORAL SOLUTION POWDER IN SACHETS?
CASENLAX 4 g ORAL SOLUTION POWDER IN SACHETS 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 CASENLAX 4 g ORAL SOLUTION POWDER IN SACHETS?
The active ingredient in CASENLAX 4 g ORAL SOLUTION POWDER IN SACHETS is macrogol. This information helps identify medicines with the same composition but different brand names.
Who manufactures CASENLAX 4 g ORAL SOLUTION POWDER IN SACHETS?
CASENLAX 4 g ORAL SOLUTION POWDER IN SACHETS is manufactured by Casen Recordati S.L.. Pharmacy brands and packaging may differ depending on the distributor.
Which doctors can assess the use of CASENLAX 4 g ORAL SOLUTION POWDER IN SACHETS 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 CASENLAX 4 g ORAL SOLUTION POWDER IN SACHETS 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 CASENLAX 4 g ORAL SOLUTION POWDER IN SACHETS?
Other medicines with the same active substance (macrogol) include CASENLAX 10 g ORAL SOLUTION POWDER IN SACHET, CASENLAX 10 G ORAL SOLUTION IN SACHET, CASENLAX 500 MG/ML ORAL 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.
bg-pattern-dark

Stay informed about Oladoctor

News about new services, product updates and useful information for patients.

Follow us on social media