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NORMOSTOP 50 mg TABLETS

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About the medicine

How to use NORMOSTOP 50 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

Patient Information Leaflet

Normostop 50 mg tablets

dimenhidrinato

Read this leaflet carefully before starting to take this medicine, as it contains important information for you.

Follow the administration instructions for the medicine contained in this leaflet or as indicated by your doctor, pharmacist, or nurse.

  • Keep this 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 they are not listed in this leaflet. See section 4.
  • You should consult a doctor if your symptoms worsen or do not improve after 7 days.

Contents of the leaflet:

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

1. What Normostop is and what it is used for

Dimenhidrinato is an active ingredient that acts against motion sickness caused by means of transportation.

Normostop is a medicine indicated for the prevention and treatment of symptoms of motion sickness caused by land, sea, or air travel, such as nausea, vomiting, and/or vertigo in adults and children over 2 years old.

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

Do not take Normostop

  • If you are allergic to dimenhidrinato or difenhidramina or any of the other components of this medicine (listed in section 6).
  • If you have porphyria (a rare, usually inherited disorder in which large amounts of porphyrin are eliminated in urine and feces).

Warnings and precautions

Consult your doctor or pharmacist before starting to take Normostop:

  • If you are allergic to any allergy medication, you may also be allergic to dimenhidrinato.
  • If you have asthma or severe respiratory diseases (chronic obstructive pulmonary disease, emphysema, chronic bronchitis), as it may cause thickening of secretions and alter expectoration.
  • If you have a disease that causes abnormal increased activity of the thyroid gland (hyperthyroidism), increased intraocular pressure (glaucoma), enlarged prostate (prostatic hypertrophy), or any disease that causes obstruction of the urinary or gastrointestinal tract.
  • If you have seizures with convulsive movements, with or without loss of consciousness (epilepsy).
  • If you are over 65 years old, dry mouth, urinary retention, nausea, sedation, confusion, and low blood pressure (hypotension) may occur.
  • If you are taking any medication that can cause ear toxicity, as symptoms of these toxic effects, such as ringing in the ears, dizziness, or vertigo, may be masked.
  • If you have any liver or kidney disease, stomach or duodenal ulcer, or stomach inflammation (gastritis).
  • If you have or have had heart diseases or disorders (cardiac arrhythmia, myocardial ischemia, ...).
  • If you suspect you may have symptoms of appendicitis, such as nausea, vomiting, or abdominal cramps, it is recommended to consult a doctor to rule out the presence or absence of appendicitis, as dimenhidrinato may hinder the diagnosis of this disease.
  • It is recommended to avoid exposure to very high temperatures and follow adequate hygiene and dietary measures, such as proper ventilation and hydration.
  • Avoid exposure to the sun (even on cloudy days) and UV lamps while taking this medication.

Children

Children under 2 years old should not take this medicine.

Taking Normostop with other medicines

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

In particular, if you are taking any of the following medicines, it may be necessary to modify the dose of Normostop or not take it:

  • Anesthetics, opioid analgesics, and other substances with a depressant effect on the central nervous system, such as alcohol, barbiturates, benzodiazepines.
  • Aminoglycoside antibiotics.
  • Antidepressants, such as monoamine oxidase inhibitors (MAOIs).
  • Antiparkinsonian agents.
  • Neuroleptics (used to calm agitation and neuromuscular hyperactivity).
  • Ototoxic medications (that can affect the ear) (see Warnings and Precautions section).
  • Medicines that can cause photosensitivity (skin reactions due to sensitivity to sunlight).

Interference with diagnostic tests

If you are going to undergo any allergy test, including skin tests, it is recommended to suspend treatment 72 hours before starting the test, so as not to alter the results.

Taking Normostop with food, drinks, and alcohol

It is not recommended to consume alcohol while taking this medicine.

It is recommended to take this medicine with food or milk.

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.

Breastfeeding

Women who are breastfeeding should not take this medicine without first consulting their doctor or pharmacist, as this medicine passes into breast milk and may also cause inhibition of lactation.

Driving and using machines

While being treated with this medicine, do not drive or operate hazardous machinery, as this medicine can cause drowsiness or decreased reaction capacity at the recommended doses.

Normostop contains sodium

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

3. How to take Normostop

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

The recommended dose is:

Children from 2 to 6 years old:

Half a tablet per dose. If necessary, repeat the dose every 8 hours.

Do not administer more than 1 and a half tablets per day (corresponding to 75 mg of dimenhidrinato) divided into several doses.

Children from 7 to 12 years old:

Half or 1 tablet per dose. If necessary, repeat the dose every 6-8 hours.

Do not administer more than 3 tablets per day (corresponding to 150 mg of dimenhidrinato)

Adults and adolescents over 12 years old:

1 or 2 tablets per dose. If necessary, repeat the dose every 4-6 hours.

Do not administer more than 8 tablets per day (corresponding to 400 mg of dimenhidrinato)

Patient with liver disease:

They should consult their doctor before taking this medicine, as it may be necessary to adjust the dose.

Oral route.

The first dose should be taken at least half an hour before starting the trip (preferably 1 or 2 hours before), leaving at least 4 hours between one dose and the next. It is recommended to take the tablets with food, water, or milk to minimize gastric irritation.

If your symptoms worsen or persist for more than 7 days, you should consult your doctor.

If you take more Normostop than you should

If you have taken more Normostop than you should, consult your doctor or pharmacist immediately.

Symptoms of overdose include mainly: dilated pupils, red face, excitement, hallucinations, confusion, stomach and intestine irritation with nausea, vomiting, and diarrhea, movement disorders, convulsions, deep loss of consciousness (coma), sudden decrease in heart and respiratory functions (cardiorespiratory collapse), and death. Symptoms may take more than 2 hours to appear after the overdose.

In case of overdose or accidental ingestion, go immediately to a medical center or call the Toxicological Information Service (phone: 915620420), indicating the medicine and the amount taken.

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 everyone gets them.

Side effects are usually mild and temporary, especially at the beginning of treatment.

During the use of dimenhidrinato, the following adverse reactions have been observed, whose frequency could not be established with precision:

  • Nausea, vomiting, constipation, diarrhea, stomach pain.
  • Lack of appetite and dry mouth.
  • Sleepiness and sedation (drowsiness).
  • Headache, vertigo, and dizziness.
  • Increased viscosity of mucus in the bronchi, making breathing difficult.
  • Urinary retention and impotence.
  • Glaucoma (increased intraocular pressure).
  • Dilated pupils, blurred vision, or double vision.
  • Allergic reactions on the skin and sensitivity to sunlight, after intense exposure, which can cause hives, itching, and redness of the skin.
  • Decrease in the blood of the number of red blood cells, white blood cells, leukocytes, and platelets.
  • Porphyria (a rare, usually inherited disorder in which large amounts of porphyrin are eliminated in feces and urine).
  • Hypotension (decreased blood pressure).
  • Tachycardia, palpitations, and/or cardiac arrhythmias.
  • Hyperexcitability may occur, especially in children, with symptoms such as insomnia, nervousness, confusion, tremors, irritability, euphoria, delirium, palpitations, and even convulsions.

Reporting of side effects

If you experience any side effects, consult your doctor or pharmacist, even if they are not listed in this leaflet. You can also report them directly through the Spanish Pharmacovigilance System for Human Use Website: www.notificaram.es.

By reporting side effects, you can contribute to providing more information on the safety of this medicine.

5. Storage of Normostop

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

Do not use this medicine after the expiration date shown on the box after CAD. The expiration date is the last day of the month indicated.

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

6. Package contents and additional information

Composition of Normostop

  • The active ingredient is dimenhidrinato, each tablet contains 50 mg of dimenhidrinato.
  • The other components (excipients) are: microcrystalline cellulose, calcium hydrogen phosphate dihydrate, sodium starch glycolate (type A), hydroxypropylcellulose, quinoline yellow, sodium saccharin, anhydrous colloidal silica, magnesium stearate.

Appearance of the product and package contents

Normostop are yellow, round, flat tablets with a break line on one side. The tablet can be divided into equal doses.

They are presented in packages containing 4 or 12 tablets.

Marketing authorization holder and manufacturer

LABORATORIOS NORMON, S.A.

Ronda de Valdecarrizo, 6 – 28760 Tres Cantos – Madrid (Spain)

Date of the last revision of this leaflet: July 2014

Detailed information about 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 NORMOSTOP 50 mg TABLETS

Discuss questions about NORMOSTOP 50 mg TABLETS, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

5.0 (69)
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.

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5.0 (63)
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.

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€59
5.0 (17)
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.

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€50
5.0 (3)
Doctor

Tomasz Grzelewski

Dermatology 21 years exp.

Dr Tomasz Grzelewski is an MD, PhD specialist in allergy, paediatrics, general practice and sports medicine, with a clinical focus on dermatology, endocrinology, allergology and sports-related health. He has more than 20 years of clinical experience and completed his medical training at the Medical University of Łódź, where he defended his PhD thesis with distinction. His doctoral research was recognised by the Polish Society of Allergology for its innovative contribution to the field. Throughout his career, he has gained extensive expertise in diagnosing and managing a wide range of allergic and paediatric conditions, including modern allergen desensitisation techniques.

For five years, Dr Grzelewski served as the Head of two paediatric departments in Poland, managing complex clinical cases and leading multidisciplinary teams. He also worked in medical centres in the United Kingdom, gaining experience across both primary care and specialist environments. With over a decade of telemedicine experience, he has provided online consultations across Europe and is valued for his clear, structured and evidence-based medical guidance.

Dr Grzelewski is actively involved in clinical programmes focused on modern anti-allergic therapies. As a Principal Investigator, he leads research projects on sublingual and oral allergen desensitisation, supporting evidence-based progress in allergy treatment for both children and adults.

In addition to his background in allergology and paediatrics, he completed dermatology studies through the Cambridge Education Group (Royal College of Physicians of Ireland) and a Clinical Endocrinology course at Harvard Medical School. This advanced training enhances his ability to manage skin manifestations of allergies, atopic conditions, urticaria, endocrine-related symptoms and complex immunological reactions.

Patients commonly seek his care for:

  • seasonal and perennial allergies
  • allergic rhinitis and chronic nasal symptoms
  • asthma and breathing difficulties
  • food and medication allergies
  • urticaria, atopic dermatitis and skin reactions
  • recurrent infections in children
  • sports-related health questions
  • general family medicine concerns
Dr Tomasz Grzelewski is known for his clear communication style, structured medical approach and ability to explain treatment options in a concise and accessible way. His multidisciplinary background across allergy, paediatrics, dermatology and endocrinology allows him to provide safe, up-to-date and comprehensive care for patients of all ages.
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€80

Frequently Asked Questions

Is a prescription required for NORMOSTOP 50 mg TABLETS?
NORMOSTOP 50 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 NORMOSTOP 50 mg TABLETS?
The active ingredient in NORMOSTOP 50 mg TABLETS is diphenhydramine. This information helps identify medicines with the same composition but different brand names.
Who manufactures NORMOSTOP 50 mg TABLETS?
NORMOSTOP 50 mg TABLETS is manufactured by Laboratorios Normon S.A.. Pharmacy brands and packaging may differ depending on the distributor.
Which doctors can assess the use of NORMOSTOP 50 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 NORMOSTOP 50 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 NORMOSTOP 50 mg TABLETS?
Other medicines with the same active substance (diphenhydramine) include BIODRAMINA 20 mg CHEWABLE MEDICATED LOZENGES, BIODRAMINA 50 mg TABLETS, BIODRAMINA INFANTIL 4 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.
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