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INTERTOS 15 mg TABLETS

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About the medicine

How to use INTERTOS 15 mg TABLETS

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This page provides general information and does not replace a doctor’s consultation. Always consult a doctor before taking any medication. Seek urgent medical care if symptoms are severe.

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Introduction

Package Leaflet: Information for the User

INTERTOS 15 mg Tablets

Dextromethorphan hydrobromide

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

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

  • Keep this package leaflet, 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 it is a side effect not listed in this package leaflet. See section 4.
  • You should consult a doctor if your symptoms worsen or do not improve after 7 days, or if the cough is accompanied by high fever, skin rash, or persistent headache.

Contents of the Package Leaflet

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

1. What INTERTOS is and what it is used for

Dextromethorphan, the active substance of this medicine, is a cough suppressant that inhibits the cough reflex.

It is indicated for the symptomatic treatment of cough that is not accompanied by expectoration (irritative cough, nervous cough) in adults and adolescents from 12 years of age.

You should consult a doctor if your symptoms worsen or do not improve after 7 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 taking INTERTOS

This medicine can cause dependence. Therefore, treatment should be short-term.

Do not take INTERTOS:

  • If you are allergic (hypersensitive) to dextromethorphan or to any of the other components of this medicine (listed in section 6).
  • If you have a severe lung disease.
  • If you have asthmatic cough.
  • If you have cough accompanied by abundant secretions.
  • If you are being treated or have been treated in the last 2 weeks with any monoamine oxidase inhibitor (MAOI) medication, used to treat depression, Parkinson's disease, or other diseases, as well as other serotonin reuptake inhibitor medications used to treat depression, such as fluoxetine and paroxetine; or also with bupropion, which is a medication used to quit smoking or with linezolid, which is an antibacterial medication. (See section: Use of INTERTOS with other medications).

Children under 12 years of age should not take this medicine.

Warnings and precautions

Consult your doctor or pharmacist before starting to take INTERTOS.

If you are taking other medications such as antidepressants or antipsychotics, INTERTOS may interact with these medications and you may experience changes in your mental state (e.g., agitation, hallucinations, coma) and other effects such as body temperature above 38°C, increased heart rate, high blood pressure, and exaggerated reflexes, muscle stiffness, lack of coordination, and/or gastrointestinal symptoms (e.g., nausea, vomiting, and diarrhea).

Especially, patients with:

  • Persistent or chronic cough, such as that caused by smoking. Especially in children, chronic cough could be an early symptom of asthma.
  • Liver or kidney disease.
  • Atopic dermatitis (inflammatory skin disease characterized by erythema, itching, exudation, crusts, and scaling, which begins in childhood in individuals with a hereditary allergic predisposition).
  • Who are sedated, debilitated, or bedridden.
  • With CYP2D6 polymorphism (genetic alteration that affects the activity of this liver enzyme).
  • Concomitant use with alcohol should be avoided.

There have been cases of abuse with medications containing dextromethorphan in adolescents, so this possibility should be taken into account, as serious side effects can occur (see section: If you take more INTERTOS than you should).

This medicine can also be addictive, so its use at high doses or for a prolonged period can cause tolerance and mental and physical dependence. In patients with a tendency to abuse or dependence, it will only be administered under strict medical control and for short periods of time.

Children and adolescents

Children under 12 years of age should not take INTERTOS.

Use of INTERTOS with other medications

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

Do not take this medicine during treatment with the following medications, nor in the 2 weeks after treatment, as it can cause excitement, high blood pressure, and fever above 40°C (hyperpyrexia):

  • monoamine oxidase inhibitor (MAOI) antidepressants (moclobemide, tranylcypromine, clorgyline, iproniazid, and isocarboxazid),
  • serotonin reuptake inhibitor antidepressants (paroxetine, fluoxetine, sibutramine, or sertraline),
  • bupropion (used to quit smoking),
  • linezolid (used as an antibacterial),
  • procarbazine (used to treat cancer),
  • selegiline (used to treat Parkinson's disease).

Before starting to take this medicine, you should consult your doctor if you are using any of the following medications, as it may be necessary to modify the dose of one of them or interrupt treatment:

  • amiodarone and quinidine (to treat heart arrhythmias),
  • anti-inflammatory medications (celecoxib, parecoxib, or valdecoxib),
  • central nervous system depressants (some of which are used to treat: mental illnesses, allergies, Parkinson's disease, etc.),
  • expectorants and mucolytics (used to eliminate phlegm and mucus),
  • CYP2D6 inhibitors such as haloperidol (used to treat mental illnesses).

Use of INTERTOS with food, beverages, and alcohol

Alcoholic beverages should not be consumed during treatment with this medicine, as it can cause adverse reactions.

Do not take with grapefruit or bitter orange juice, as they can increase the adverse effects of this medicine.

The rest of the food and beverages can be taken with this medicine, as they do not affect its efficacy.

Pregnancy, breastfeeding, and fertility

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

Pregnant or breastfeeding women should not take this medicine without consulting a doctor.

Driving and using machines

During treatment with this medicine, you may experience drowsiness, dizziness, fatigue (tiredness), dystonia (involuntary muscle contractions), and visual hallucinations, so if you notice these symptoms, you should not drive vehicles or use hazardous machinery.

Medicine questions

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Discuss your symptoms and treatment with a doctor online.

3. How to take INTERTOS

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

The recommended dose is:

Adults and adolescents from 12 years of age: 1 tablet (15 mg of dextromethorphan hydrobromide) every 4 hours or 2 tablets (30 mg) every 6-8 hours, depending on the intensity of the cough. Do not take more than 8 tablets (120 mg) per day.

Always use the lowest effective dose.

Method of administration

Oral route.

Take the tablets with a little water. It can be taken with or without food. Do not take with grapefruit or bitter orange juice or with alcoholic beverages (see section: Use of INTERTOS with food, beverages, and alcohol).

If the cough worsens or persists for more than 7 days, or if it is accompanied by high fever, skin rash, or persistent headache, you should consult a doctor.

Use in children and adolescents

This medicine can only be taken by adolescents from 12 years of age.

If you take more INTERTOS than you should

If you take more INTERTOS than indicated, you may experience the following symptoms: nausea and vomiting, involuntary muscle contractions, agitation, confusion, drowsiness, disorders of consciousness, rapid involuntary eye movements, cardiac disorders (accelerated heart rate), coordination disorders, psychosis with visual hallucinations, and hyperexcitability.

Other symptoms in case of massive overdose may be: coma, severe respiratory problems, and convulsions.

Contact your doctor or hospital immediately if you experience any of the mentioned symptoms.

If you take more INTERTOS than recommended, you may notice: confusion, excitability, restlessness, nervousness, and irritability. Depending on the degree of intoxication, the symptoms may vary.

Taking very high amounts of this medicine can cause children to become drowsy, nervous, nauseous, vomit, or have changes in their gait.

There have been cases of abuse with medications containing dextromethorphan, which can cause serious side effects, such as: anxiety, panic, memory loss, tachycardia (accelerated heart rate), lethargy, high or low blood pressure, mydriasis (pupil dilation), agitation, vertigo, gastrointestinal discomfort, slurred speech, nystagmus (involuntary eye movement), fever, tachypnea (rapid shallow breathing), brain damage, ataxia (uncoordinated movements), convulsions, respiratory depression, loss of consciousness, arrhythmias (irregular heartbeats), and death.

In case of intoxication, you should receive treatment according to the symptoms, which may include intravenous naloxone injection and stomach lavage.

In case of overdose or accidental ingestion, go to your doctor or call the Toxicological Information Service (phone: 91 562 04 20), indicating the medicine and the amount taken.

4. Possible side effects

Like all medicines, INTERTOS can cause side effects, although not everyone will experience them.

During the use of dextromethorphan, the following side effects have been observed, whose frequency has not been established with certainty.

  • Nervous system disorders: drowsiness, dizziness, fatigue, involuntary muscle contractions, and more rarely mental confusion and headache.
  • Gastrointestinal disorders: nausea, vomiting, gastrointestinal discomfort such as stomach pain, constipation.
  • Ear and labyrinth disorders: vertigo
  • Immune system disorders: hypersensitivity and anaphylactic reaction including symptoms such as: skin rash, urticaria, edema, pruritus, and cardio-respiratory difficulty.
  • Psychiatric disorders: visual hallucinations and confusion. These effects are much more pronounced with overdose (see section: If you take more INTERTOS than you should).
  • Skin and subcutaneous tissue disorders: skin rash, urticaria, pruritus, erythema, allergic dermatitis.

Other side effects in children

Taking very high amounts of this medicine can cause children to become drowsy, nervous, nauseous, vomit, or have changes in their gait.

Reporting of side effects:

If you experience any side effect, consult your doctor, pharmacist, or nurse, even if it is a possible side effect not listed in this package leaflet. You can also report them directly through the Spanish Medicines and Health Products Agency (AEMPS) website (http://www.aemps.gob.es). By reporting side effects, you can help provide more information on the safety of this medicine.

5. Storage of INTERTOS

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

Do not use this medicine after the expiration date stated on the packaging, after CAD. The expiration date is the last day of the month indicated.

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

6. Contents of the pack and further information

Composition of INTERTOS

  • Each tablet contains 15 mg of dextromethorphan hydrobromide as the active substance (equivalent to 10.993 mg of dextromethorphan)
  • The other components (excipients) are: microcrystalline cellulose, cornstarch, magnesium stearate.

Appearance of the product and packaging contents

This medicine is presented in the form of round, white, biconvex tablets, scored on one side. The score line should not be used to divide the tablet.

It is presented in packs containing 20 tablets in aluminum-PVC and PVDC blisters.

Marketing authorization holder

INTERPHARMA, S.A.

C/ Santa Rosa 6

08921 Santa Coloma de Gramenet (Barcelona)

Spain

Manufacturer

Laboratorios Alcalá Farma, S.L.

Avenida de Madrid, 82

28802 Alcalá de Henares (Madrid)

Spain

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

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

Online doctors for INTERTOS 15 mg TABLETS

Discuss questions about INTERTOS 15 mg TABLETS, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

5.0 (140)
Doctor

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).
  • 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.

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Doctor

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).
  • 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.
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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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€60
5.0 (2)
Doctor

Svetlana Kolomeeva

Cardiology 18 years exp.

Dr. Svetlana Kolomeeva is a general practitioner and internal medicine doctor providing online consultations for adults. She helps patients manage acute symptoms, chronic conditions, and preventive care. Her clinical focus includes cardiovascular health, hypertension control, and managing symptoms like fatigue, weakness, sleep issues, and overall low energy.

Patients commonly seek her help for:

  • High blood pressure, headaches, dizziness, swelling, palpitations.
  • Diagnosis and management of hypertension, arrhythmias, and tachycardia.
  • Metabolic syndrome, excess weight, high cholesterol.
  • Chronic fatigue, insomnia, poor concentration, anxiety.
  • Respiratory symptoms: colds, flu, sore throat, cough, fever.
  • Digestive issues: heartburn, bloating, constipation, IBS symptoms.
  • Chronic conditions: diabetes, thyroid disorders.
  • Interpretation of lab tests and medical reports, therapy adjustment.
  • Second opinion and decision-making support.
  • Cardiovascular disease prevention and metabolic risk reduction.
  • Long-term follow-up and dynamic health monitoring.

Dr Kolomeeva combines clinical expertise with personalised care. She clearly explains diagnoses, guides patients through symptoms and treatment options, and provides actionable plans. Her consultations are designed not only to address current complaints but also to stabilise chronic conditions and prevent future complications. She supports patients through every stage of care – from first symptoms to ongoing health management.

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5.0 (2)
Doctor

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 INTERTOS 15 mg TABLETS?
INTERTOS 15 mg TABLETS does not require a prescription in Spain. You can check with a doctor online whether this medicine may be appropriate for your situation.
What is the active substance in INTERTOS 15 mg TABLETS?
The active ingredient in INTERTOS 15 mg TABLETS is dextromethorphan. This information helps identify medicines with the same composition but different brand names.
Who manufactures INTERTOS 15 mg TABLETS?
INTERTOS 15 mg TABLETS is manufactured by Interpharma S.A.. Pharmacy brands and packaging may differ depending on the distributor.
Which doctors can assess the use of INTERTOS 15 mg TABLETS online?
Doctors such as Family doctors, Psychiatrists, Dermatologists, Cardiologists, Endocrinologists, Gastroenterologists, Pulmonologists, Nephrologists, Rheumatologists, Hematologists, Infectious disease physicians, Allergists, Geriatricians, Paediatricians, Oncologists may assess whether INTERTOS 15 mg TABLETS is appropriate, depending on your situation and local regulations. You can book an online consultation to discuss your symptoms and possible next steps.
What are the alternatives to INTERTOS 15 mg TABLETS?
Other medicines with the same active substance (dextromethorphan) include BICASAN 2 mg/ml SYRUP, BISOLVON ANTITUSSIVE 2 mg/ml SYRUP, CINFATOS 10 mg LOZENGES. 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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