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MAGNESIA 2.4 g Oral Solution

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Doctor
5.0(11)

Anna Biriukova

Gastroenterology6 years of experience

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).
  • 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).
  • 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.
  • Holistic approach – symptom relief, complication prevention, and quality of life improvement.
Dr Biriukova combines internal medicine with specialist insight, offering clear explanations, personalised treatment plans, and comprehensive care tailored to each patient.
Book a video appointment
€66
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 MAGNESIA SEID 2.4 g POWDER FOR ORAL SUSPENSION

Contents of the leaflet

  1. Introduction
  2. What is Magnesia Seid 2.4 g and what is it used for
  3. What you need to know before taking Magnesia Seid 2.4 g
  4. How to take Magnesia Seid 2.4 g
  5. Possible side effects
  6. Storage of Magnesia Seid 2.4 g
  7. Package contents and additional information

Introduction

Prospectus: Information for the User

MAGNESIA SEID 2.4 g POWDER FOR ORAL SUSPENSION

Magnesium Hydroxide

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

Follow the administration instructions for this medication exactly as indicated in this prospectus or as directed by your doctor or pharmacist.

  • Keep this prospectus, as 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 prospectus. See section 4.
  • You should consult a doctor if your condition worsens or does not improve after 5 days.

Contents of the Prospectus:

  1. What is Magnesia Seid 2.4 g and what is it used for
  2. What you need to know before taking Magnesia Seid 2.4 g
  3. How to take Magnesia Seid 2.4 g
  4. Possible side effects
  5. Storage of Magnesia Seid 2.4 g
  6. Package contents and additional information

1. What is Magnesia Seid 2.4 g and what is it used for

This medication belongs to the group of medications known as laxatives.

It is indicated for the symptomatic and temporary treatment 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 5 days.

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 Magnesia Seid 2.4 g

Do not takeMagnesia Seid:

  • If you are allergic to magnesium hydroxide or any of the other components of this medication (listed in section 6).
  • During the 24 hours prior to undergoing a gastric acid secretion test.

If you have:

  • A severe kidney disease. Any disease that causes hydroelectrolytic imbalance (salts and water present in the body).
  • Appendicitis, intestinal obstruction, gastrointestinal or rectal bleeding that has not been diagnosed, ulcerative colitis (inflammatory disease of the colon), colostomy (surgical procedure in which the end of the large intestine is brought through the abdominal wall), diverticulitis (inflammation in the intestinal wall forming abnormal pouches), ileostomy (surgical procedure in which the end of the small intestine is brought through the abdominal wall).

Warnings and precautions

Consult your doctor or pharmacist before starting to take Magnesia Seid.

Be especially careful if you have any kidney disease, even if it is not severe, or liver or heart disease. You should also be under special control in cases of dehydration, in the elderly, or if you have swelling in your feet or lower legs.

You should consult your doctor if you have any symptoms that may indicate bleeding, such as black stools or vomit like coffee grounds. Consult your doctor as soon as possible if you have any symptoms such as abdominal pain of unknown origin, cramps, bloated or painful abdomen, nausea, vomiting, and diarrhea.

Children and adolescents

Do not administer to children under 12 years of age.

In young children, the use of magnesium hydroxide can cause hypermagnesemia, especially in the presence of renal insufficiency or dehydration.

Using Magnesia Seid withother medications

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

Some medications may be affected by magnesium hydroxide or may affect the efficacy of magnesium hydroxide. The concurrent administration of Magnesia Seid with other medications may alter the absorption or action of other medications used to treat:

  • Diabetes: chlorpropamide, glibenclamide, glipizide, tolbutamide.
  • Infections: sulfonamides, quinolones (ciprofloxacin, ofloxacin, pefloxacin, enoxacin), tetracyclines (chlotetracycline, doxycycline, tetracycline), ketoconazole, methenamine.
  • Blood coagulation disorders: dicumarol.
  • Anemia: iron salts, folic acid.
  • Parkinson's disease: levodopa.
  • Spasms or contractions of the stomach, intestine, and bladder (anticholinergic medications).
  • Cardiovascular diseases: atenolol, digoxin, captopril, quinidine.
  • Psychiatric disorders: phenothiazines (especially oral chlorpromazine), chlordiazepoxide, amphetamines.
  • Epilepsy: phenytoin.
  • Digestive system diseases: medications used for acidity (cimetidine, etc.), misoprostol, pancreolipase, sucralfate.
  • Inflammation: indomethacin, penicillamine, salicylates, ibuprofen, flurbiprofen, mefenamic acid or flufenamic acid.
  • Metabolic disorders: oral phosphates, alendronic acid and tiludronic acid, polystyrene resin, sodium sulfonate, vitamin D, including calcifediol and calcitriol.
  • Smoking cessation: mecamylamine.
  • Others: medications with enteric coating, urinary acidifiers, such as ammonium chloride, ascorbic acid, or potassium or sodium phosphate.

Separate the intake of Magnesia Seid from the intake of other medications by 2 to 3 hours.

Interference with diagnostic tests

If you are going to undergo any diagnostic test (blood test, urine test, etc.), inform your doctor or pharmacist that you are being treated with Magnesia Seid, as it may alter the results.

Do not take this medication during the 24 hours prior to undergoing a gastric acid secretion test, serum gastrin concentrations (hormone that regulates acid secretion in the stomach), serum potassium concentrations, and determination of serum and urinary pH.

Taking Magnesia Seid with food and drinks

Take in the mornings, on an empty stomach.

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 medication.

Driving and using machines

It has not been described that this medication has any effect on the ability to drive vehicles or operate machinery.

3. How to take Magnesia Seid 2.4 g

Follow the administration instructions for this medication exactly as indicated in this prospectus or as directed by your doctor or pharmacist. In case of doubt, consult your doctor or pharmacist again.

Oral route

The recommended dose for adults and children over 12 years of age is one sachet every 24 hours, taken in the mornings, on an empty stomach.

Pour the powder contents of one sachet into half a glass of water and shake before taking.

Always take the smallest effective dose.

If you do not improve or symptoms persist after 5 days of continuous treatment, you should consult a doctor.If you take more Magnesia Seidthan you should

Consult your doctor or pharmacist immediately or call the Toxicology Information Service, phone: 91 5620420, indicating the medication and the amount ingested.

The symptoms of overdose that may occur are diarrhea and, more rarely, hypermagnesemia may appear, with vision disorders, cardiac rhythm disorders, and neurological disorders.

If you forget to take Magnesia Seid

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

If you have any other doubts about the use of this medication, ask your doctor or pharmacist.

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 may experience them.

The side effects of magnesium hydroxide are generally mild and transient.

Gastrointestinal disorders

  • Common (may affect up to 1 in 10 people): diarrhea
  • Frequency not known: abdominal pain

Metabolism and nutrition disorders

  • Very rare (may affect up to 1 in 10,000 people): hypermagnesemia (elevated magnesium levels in the blood) after prolonged administration in patients with renal insufficiency. Initial symptoms include flushing, thirst, hypotension, nausea, vomiting, general fatigue, confusion, dizziness, blurred vision, disorientation, and muscle weakness.

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 prospectus. You can also report them directly through the Spanish Medication Surveillance System for Human Use: www.notificaRAM. By reporting side effects, you can contribute to providing more information on the safety of this medication.

5. Storage of Magnesia Seid 2.4 g

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

No special storage conditions are required.

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 the packaging and medications you no longer need at the SIGRE Circular black symbol with a cross in the center and curved arrows indicating a continuous cycle point in your pharmacy. If in 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

Composition of Magnesia Seid 2.4 g

  • The active ingredient is magnesium hydroxide. Each sachet contains 2.4 g of magnesium hydroxide.
  • The other ingredients are: microcrystalline cellulose, sodium carmellose, sodium cyclamate, and lemon flavor (containing maltodextrin, modified tapioca starch, and butylhydroxyanisole (E 320)).

Appearance of the product and package contents

Magnesia Seid is presented as a powder for oral suspension, in single-dose sachets.

Each carton contains 14 or 200 sachets, each with 2.6 g.

Marketing authorization holder and manufacturer

SEID, S.A.

Carretera de Sabadell a Granollers, Km. 15

08185 - Lliçà de Vall (Barcelona)

Date of the last revision of this prospectus:October 2017

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 MAGNESIA SEID 2.4 g POWDER FOR ORAL SUSPENSION

Discuss questions about MAGNESIA SEID 2.4 g POWDER FOR ORAL SUSPENSION, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

Doctor
5.0(11)

Anna Biriukova

Gastroenterology6 years of experience

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).
  • 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).
  • 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.
  • Holistic approach – symptom relief, complication prevention, and quality of life improvement.
Dr Biriukova combines internal medicine with specialist insight, offering clear explanations, personalised treatment plans, and comprehensive care tailored to each patient.
Book a video appointment
€66
Doctor
5.0(38)

Andrei Popov

General medicinePain medicine7 years of experience

Dr. Andrei Popov is a General Practitioner with specialized training in chronic pain. He provides online consultations for adult patients in Spain and other European countries.

Dr. Popov understands that seeking help with weight-related concerns or pain that has persisted for months can be difficult. Many patients come to him after trying different approaches without feeling truly heard. During the consultation, the doctor creates a comfortable and supportive, non-judgmental environment where the patient’s medical history can be discussed in detail, questions can be answered, and the next steps can be decided together.

Weight Management and Metabolic Health

Dr. Popov can help assess overweight, obesity, and related conditions such as hypertension, diabetes, or metabolic disorders. During the consultation, the patient’s medical history, test results, current medications, and previous treatments will be reviewed.

If you would like to learn about possible medication options or have already started treatment, the doctor can assess your situation, review the effectiveness and tolerability of the therapy, and clearly explain its benefits, potential risks, and alternatives.

Not every patient requires the same treatment. A consultation does not guarantee a prescription — it provides an objective medical assessment and a plan tailored to your individual situation.

Pain and General Medicine

You can also consult Dr. Popov regarding:

* chronic pain, migraines, neuralgia, and fibromyalgia;

* back, neck, lower back, or joint pain;

* hypertension, diabetes, and follow-up of chronic conditions;

* review of test results, medical reports, and current treatment;

* preventive medicine and a second medical opinion.

How the Consultation Works

The video consultation lasts up to 30 minutes. The doctor will listen carefully, review the information you provide, and explain the next steps in clear and understandable language.

If additional tests, an in-person consultation, or urgent medical care are required, the doctor will inform you directly.

Dr. Popov’s goal is to make sure the patient feels heard and leaves the consultation with a clear understanding of their condition and the next steps they can take.

Book a video appointment
€86
Doctor
5.0(12)

Yevgen Yakovenko

General medicine12 years of experience

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).
  • Certified in radiological diagnostics and robotic surgery.
  • Active participant in international medical conferences and research.

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.

Book a video appointment
€72
Doctor
5.0(3)

Lina Travkina

General medicine13 years of experience

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.

  • 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.

  • Post-operative recovery support and pain management.

  • 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.

Book a video appointment
€75
Doctor
5.0(20)

Nuno Tavares Lopes

General medicine18 years of experience

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.

Book a video appointment
€70

Get MAGNESIA SEID 2.4 g POWDER FOR ORAL SUSPENSION Prescription Online

1

Fill in a 2-min form

Tell us your symptoms, history, and what medicine you're requesting.

2

Pick a doctor or let us assign

Choose a specialist or we'll match you with the next available doctor.

3

Doctor reviews your case

Usually within 30 minutes. They may ask follow-up questions via chat.

4

Collect from any pharmacy

Electronic prescription sent to your email — valid across Spain.

Frequently Asked Questions

MAGNESIA SEID 2.4 g POWDER FOR ORAL SUSPENSION does not require a prescription in Spain. You can check with a doctor online whether this medicine may be appropriate for your situation.

The active ingredient in MAGNESIA SEID 2.4 g POWDER FOR ORAL SUSPENSION is Osmotically acting laxatives. This information helps identify medicines with the same composition but different brand names.

MAGNESIA SEID 2.4 g POWDER FOR ORAL SUSPENSION is manufactured by Seid S.A.. Pharmacy brands and packaging may differ depending on the distributor.

Doctors such as Family doctors, Psychiatrists, Dermatologists, Cardiologists, Endocrinologists, Gastroenterologists, Pulmonologists, Nephrologists, Rheumatologists, Hematologists, Infectious disease physicians, Allergists, Geriatricians, Paediatricians, Oncologists may assess whether MAGNESIA SEID 2.4 g POWDER FOR ORAL SUSPENSION is appropriate, depending on your situation and local regulations. You can book an online consultation to discuss your symptoms and possible next steps.

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 MAGNESIA SEID 2.4 g POWDER FOR ORAL SUSPENSION in Madrid, Barcelona, Seville, or Valencia at any local pharmacy with a valid prescription.

To obtain a prescription, you can use Oladoctor:

Other medicines with the same active substance (Osmotically acting laxatives) include MAGNESIA LAINCO 2.4 g ORAL SUSPENSION, MAGNESIA LAINCO 200 MG/ML ORAL SUSPENSION, ACOLORA POWDER FOR ORAL SOLUTION IN SACHET. 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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