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BERODUAL N

BERODUAL N

Ask a doctor about a prescription for BERODUAL N

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Doctor

Alina Tsurkan

Family medicine12 years of experience

Dr. Alina Tsurkan is a licensed family medicine physician based in Portugal, offering online consultations for adults and children. She provides professional primary care, with a focus on prevention, accurate diagnosis, and long-term management of acute and chronic conditions.

Dr. Tsurkan supports patients with a wide range of health issues, including:

  • Respiratory infections: cold, flu, bronchitis, pneumonia, and lingering coughs.
  • ENT conditions: sinusitis, tonsillitis, otitis (ear infections), sore throat, allergic rhinitis.
  • Eye conditions: allergic or infectious conjunctivitis, red eyes, irritation.
  • Digestive issues: acid reflux (GERD), gastritis, irritable bowel syndrome (IBS), constipation, bloating, nausea.
  • Urinary and reproductive health: urinary tract infections (UTIs), cystitis, prevention of recurrent infections.
  • Chronic diseases: hypertension, elevated cholesterol, weight management.
  • Neurological complaints: headaches, migraines, sleep disturbances, fatigue, general weakness.
  • Children’s health: fever, infections, digestive issues, follow-ups, vaccination guidance.

She also provides:

  • IMT medical certificates for driving licence exchange in Portugal.
  • Personalised preventive care and wellness consultations.
  • Interpretation of test results and medical reports.
  • Follow-up care and medication review.
  • Support in managing multiple coexisting conditions.
  • Remote prescription management and medical documentation.

Dr. Tsurkan’s approach is evidence-based and holistic. She works closely with each patient to develop an individualised care plan that addresses both symptoms and root causes. Her goal is to empower patients to take control of their health and maintain well-being through lifestyle adjustments, routine check-ups, and early intervention.

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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 BERODUAL N

INSTRUCTIONS for medical use of the medicinal product ISONIAZID-DARNITSA

Composition

active substance: isoniazid; 1 tablet contains 300 mg of isoniazid; excipients: microcrystalline cellulose, methylcellulose, sodium croscarmellose, calcium stearate.

Pharmaceutical form

Tablets.

Main physical and chemical properties

Tablets of round shape with a flat surface, white or white with a creamy tint, with a notch and a facet.

Pharmacotherapeutic group

Anti-tuberculosis drugs. ATC code J04A C01.

Pharmacological properties

Pharmacodynamics

Isoniazid-Darnitsa inhibits DNA-dependent RNA polymerase and inhibits the synthesis of mycolic acids of the cell wall of tuberculosis mycobacteria. The drug has high bacteriostatic activity against tuberculosis mycobacteria, slowing their growth at a concentration of 0.03 mcg/ml. It is especially active against rapidly multiplying microorganisms. It has a weak effect on the causative agents of other infectious diseases.

Pharmacokinetics

Well absorbed from the gastrointestinal tract, easily penetrates the blood-brain barrier. The time to reach the maximum concentration in the blood (Tmax) is 1-4 hours. Binding to plasma proteins is up to 10%. The volume of distribution is 0.56-0.76 L/kg. The tuberculostatic concentration after a single dose is maintained for 6-24 hours. It is widely distributed in the tissues and fluids of the body, including cerebrospinal fluid, pleural effusion, ascitic fluid, skin, lungs, sputum, saliva, and caseous masses. It penetrates through the placenta and is excreted in breast milk.

Clinical characteristics

Indications
  • In combination with 3-4 other anti-tuberculosis drugs - for the treatment of active tuberculosis of all forms and localizations;
  • as monotherapy - for the treatment of latent tuberculosis infection;
  • as monotherapy - for the prevention of tuberculosis in individuals who have been or are in close contact with patients with tuberculosis.
Contraindications

Increased sensitivity to isoniazid or to the excipients of the drug.

Epilepsy and other diseases that are accompanied by a tendency to seizures, severe psychoses, poliomyelitis (including in the anamnesis), toxic hepatitis in the anamnesis due to the use of hydrazide derivatives of isonicotinic acid (ftivazid), pronounced atherosclerosis, acute liver and/or kidney failure.

Interaction with other medicinal products and other types of interactions

Antacid drugs - reduction of isoniazid absorption (the interval between their administration should be at least 1 hour).

Indirect anticoagulants, benzodiazepines, phenytoin, carbamazepine, theophylline, MAO inhibitors - isoniazid potentiates the effects of these drugs (including toxic ones).

Isoniazid may reduce the hepatic metabolism of benzodiazepines (e.g., diazepam, flurazepam, triazolam, midazolam), leading to an increase in their concentration in plasma. Patients should be carefully monitored for signs of benzodiazepine toxicity, and the doses of benzodiazepines should be adjusted accordingly.

Special instructions

As a result of monotherapy with isoniazid, resistant strains of mycobacteria are formed, so it should be used in combination with other anti-tuberculosis drugs. In the case of mixed infection, antibiotics with a broad spectrum of action, fluoroquinolones, and sulfonamides should be prescribed simultaneously with isoniazid.

Use during pregnancy or breastfeeding

During pregnancy, the use of the drug is contraindicated at a dose higher than 10 mg/kg per day. At a dose of up to 10 mg/kg of body weight per day, the use of isoniazid is possible, taking into account the benefit/risk ratio.

Method of administration and dosage

The daily and course dose is determined individually, depending on the course and form of the disease, the degree of inactivation of isoniazid, the effectiveness of therapy, and the tolerance of the drug.

Overdose

Symptoms: in case of overdose, 0.5-3 hours after administration of the drug, disorders of the digestive tract (including liver) may occur - nausea, vomiting, anorexia, metabolic acidosis, acetonuria, hyperglycemia, glucosuria, neurotoxic manifestations (dizziness, fever, headache, visual and hearing disturbances, indistinct speech, weakness, disorientation, visual hallucinations, hyperreflexia, respiratory failure, and depression of the central nervous system, which rapidly progress, stupor, seizures, coma).

Adverse reactions

From the organs of vision: neuritis of the optic nerve, atrophy of the optic nerve.

From the organs of hearing and the vestibular apparatus: hearing loss and tinnitus in patients with terminal stage renal failure.

Reports of suspected adverse reactions

Reports of suspected adverse reactions after registration of the medicinal product are an important procedure.

Shelf life

5 years.

Storage conditions

Store in the original packaging at a temperature not exceeding 25 °C.

Packaging

10 tablets in a contour cell pack; 5 contour cell packs in a pack; 1000, 1500, or 2500 tablets in containers.

Release category

By prescription.

Manufacturer

PrJSC "Pharmaceutical firm "Darnitsa".

Location of the manufacturer and address of the place of its activity

Ukraine, 02093, Kyiv, Borispylska street, 13.

Alternatives to BERODUAL N in other countries

The best alternatives with the same active ingredient and therapeutic effect.

Alternative to BERODUAL N in Poland

Dosage form: Solution, (0.5 mg + 1.25 mg)/4 ml
Importer: Farmak International Sp. z o.o.
Prescription required
Dosage form: Solution, (0.5 mg + 0.25 mg)/ml
Importer: Adamed Pharma S.A. Nord Farm Sp. z o.o.
Prescription required
Dosage form: Aerosol, (50 mcg + 21 mcg)/dose inh.
Prescription required
Dosage form: Solution, (0.5 mg + 0.25 mg)/ml
Prescription required

Alternative to BERODUAL N in Spain

Dosage form: PULMONARY INHALATION, 85 MICROGRAMS/43 MICROGRAMS
Prescription required
Dosage form: PULMONARY INHALATION, 85 micrograms / 43 micrograms
Prescription required
Dosage form: PULMONARY INHALATION, 88 MICROGRAMS/5 MICROGRAMS/9 MICROGRAMS
Prescription required
Dosage form: PULMONARY INHALATION, 87 MICROGRAMS/5 MICROGRAMS/9 MICROGRAMS
Prescription required
Dosage form: PULMONARY INHALATION, 172 micrograms/5 micrograms/9 micrograms
Prescription required
Dosage form: PULMONARY INHALATION, 0.5 mg/2.5 mg
Manufacturer: Cipla Europe
Prescription required

Online doctors for BERODUAL N

Discuss dosage, side effects, interactions, contraindications, and prescription renewal for BERODUAL N – subject to medical assessment and local rules.

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Doctor

Antonio Cayatte

General medicine43 years of experience

Dr Antonio Cayatte is a physician in General and Acute Medicine with over 30 years of experience across clinical care, medical research, and education. He offers online consultations for adults with a wide range of symptoms, both acute and chronic.

His clinical background includes:

  • assessment of sudden or unclear symptoms
  • ongoing care for chronic conditions
  • follow-up after hospital discharge
  • interpretation of test results
  • medical support while abroad
Dr Cayatte earned his degree from the University of Lisbon and taught internal medicine at Boston University School of Medicine. He holds active medical registrations in both Portugal and the UK and is a Fellow of the American Heart Association.

Consultations are available in English and Portuguese. Patients value his clarity, professionalism, and balanced approach to evidence-based care.

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5.0(96)
Doctor

Alina Tsurkan

Family medicine12 years of experience

Dr. Alina Tsurkan is a licensed family medicine physician based in Portugal, offering online consultations for adults and children. She provides professional primary care, with a focus on prevention, accurate diagnosis, and long-term management of acute and chronic conditions.

Dr. Tsurkan supports patients with a wide range of health issues, including:

  • Respiratory infections: cold, flu, bronchitis, pneumonia, and lingering coughs.
  • ENT conditions: sinusitis, tonsillitis, otitis (ear infections), sore throat, allergic rhinitis.
  • Eye conditions: allergic or infectious conjunctivitis, red eyes, irritation.
  • Digestive issues: acid reflux (GERD), gastritis, irritable bowel syndrome (IBS), constipation, bloating, nausea.
  • Urinary and reproductive health: urinary tract infections (UTIs), cystitis, prevention of recurrent infections.
  • Chronic diseases: hypertension, elevated cholesterol, weight management.
  • Neurological complaints: headaches, migraines, sleep disturbances, fatigue, general weakness.
  • Children’s health: fever, infections, digestive issues, follow-ups, vaccination guidance.

She also provides:

  • IMT medical certificates for driving licence exchange in Portugal.
  • Personalised preventive care and wellness consultations.
  • Interpretation of test results and medical reports.
  • Follow-up care and medication review.
  • Support in managing multiple coexisting conditions.
  • Remote prescription management and medical documentation.

Dr. Tsurkan’s approach is evidence-based and holistic. She works closely with each patient to develop an individualised care plan that addresses both symptoms and root causes. Her goal is to empower patients to take control of their health and maintain well-being through lifestyle adjustments, routine check-ups, and early intervention.

CameraBook a video appointment
€55
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Doctor

Dmytro Horobets

Family medicine6 years of experience

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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Doctor

Karim BenHarbi

General medicine8 years of experience

Dr. Karim Ben Harbi is a licensed general practitioner based in Italy. He provides online consultations for adults and children, combining international clinical experience with evidence-based medicine. His care approach is focused on accurate diagnosis, preventive care, and personalised health guidance.

Dr. Ben Harbi received his medical degree from Sapienza University in Rome. His training included hands-on experience in diverse settings — tropical medicine, rural healthcare, and urban outpatient practice. He also conducted clinical research in microbiology, exploring the role of the gut microbiome in chronic gastrointestinal issues.

You can consult Dr. Ben Harbi for:

  • General health concerns, prevention, and primary care.
  • Hypertension, type 1 and type 2 diabetes, metabolic issues.
  • Cold, cough, flu, respiratory infections, sore throat, fever.
  • Chronic digestive issues: bloating, gastritis, IBS, microbiome imbalance.
  • Skin rashes, mild allergic reactions, basic dermatological complaints.
  • Medication guidance, treatment adjustments, prescription review.
  • Paediatric concerns — fever, infections, general well-being.
  • Lifestyle optimisation: stress, sleep, weight, and diet counselling.

Dr. Ben Harbi offers reliable, accessible medical support through online consultations, helping patients make informed decisions about their health with a clear, structured, and compassionate approach.

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€79
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Doctor

Svetlana Kolomeeva

Cardiology17 years of experience

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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Doctor

Alexandra Alexandrova

General medicine8 years of experience

Dr Alexandra Alexandrova is a licensed general medicine doctor in Spain, specialising in trichology, nutrition, and aesthetic medicine. She offers online consultations for adults, combining a therapeutic approach with personalised care for hair, scalp, and overall health.

Areas of expertise:

  • Hair loss in women and men, postpartum hair loss, androgenetic and telogen effluvium.
  • Scalp conditions: seborrheic dermatitis, psoriasis, scalp irritation, dandruff.
  • Chronic conditions: hypertension, diabetes, metabolic disorders.
  • Online trichology consultation: customised treatment plans, nutritional support, hair growth stimulation.
  • Hair loss prevention: hormonal imbalance, stress factors, haircare strategies.
  • Routine health check-ups, prevention of cardiovascular and metabolic diseases.
  • Personalised nutritional advice to improve hair strength, skin health, and hormonal balance.
  • Aesthetic medicine: non-invasive strategies to enhance skin quality, tone, and metabolic wellness.

Dr Alexandrova follows an evidence-based and holistic approach: online consultations with a therapist and trichologist on Oladoctor provide professional support for hair, scalp, and overall health — all from the comfort of your home.

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