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BECAREN 1000 micrograms TABLETS

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

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

5.0 (54)
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.
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 BECAREN 1000 micrograms TABLETS

Translated with AI

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

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Introducción

Prospecto: información para el usuario

Becaren 1000 microgramos comprimidos

cianocobalamina (vitamina B12)

Lea todo el prospecto detenidamente antes de empezar a tomar este medicamento, porque contiene información importante para usted.

  • Conserve este prospecto, ya que puede tener que volver a leerlo.
  • Si tiene alguna duda, consulte a su médico o farmacéutico.
  • Este medicamento se le ha recetado solamente a usted, y no debe dárselo a otras personas aunque tengan los mismos síntomas que usted, ya que puede perjudicarles.
  • Si experimenta efectos adversos, consulte a su médico o farmacéutico, incluso si se trata de efectos adversos que no aparecen en este prospecto. Ver sección 4

Contenido del prospecto

  1. Qué es Becaren y para qué se utiliza
  2. Qué necesita saber antes de empezar a tomar Becaren
  3. Cómo tomar Becaren
  4. Posibles efectos adversos
  5. Conservación de Becaren
  6. Contenido del envase e información adicional

1. Qué es Becaren y para qué se utiliza

Este medicamento contiene cianocobalamina, que se conoce como vitamina B12.

La mayoría de las personas obtienen suficiente vitamina B12 de los alimentos, pero si se ha sometido a una operación de estómago o padece ciertas enfermedades intestinales, si sigue una dieta restringida o si toma ciertos medicamentos, es posible que no absorba suficiente vitamina B12.

Este medicamento se utiliza para el tratamiento del déficit de vitamina B12 y tratamiento de mantenimiento en pacientes adultos:

  • A quienes se les ha diagnosticado anemia perniciosa.
  • Que tienen mala absorción de vitamina B12 (p. ej., debido a gastritis atrófica, enfermedad intestinal inflamatoria, enfermedad celiaca, gastrectomía total o parcial, resección de íleon, derivación gástrica u otra cirugía bariátrica).
  • Con uso prolongado de antagonistas de los receptores de histamina H2, inhibidores de la bomba de protones, aminosalicilatos y metformina.

Este medicamento también se usa para tratar del déficit de vitamina B12 debido a la ingesta dietética reducida (p. ej., dieta vegetariana) en adultos.

Doctor consultation

Not sure if this medicine is right for you?

Discuss your symptoms and treatment with a doctor online.

2. Qué necesita saber antes de empezar a tomar Becaren

No tome Becaren

  • si es alérgico a la cianocobalamina o vitamina B12 o a alguno de los demás componentes de este medicamento (incluidos en la sección 6 de este prospecto)
  • si padece una anemia resultado de una alteración en la división de las células de la médula ósea (anemia megaloblástica, una afección en la que el organismo produce glóbulos rojos inmaduros de tamaño inusualmente grande) causada exclusivamente por deficit de folato (vitamina B9)
  • si padece alteraciones visuales causadas por el abuso del tabaco o del alcohol, que a menudo se asocian a deficiencias nutricionales (neuropatía óptica nutricional) o una inflamación del nervio óptico (neuritis retrobulbar) que se produzcan como consecuencia de una enfermedad en la que no tenga suficientes glóbulos rojos (anemia perniciosa), o de cualquier otra afección que requiera la eliminación (desintoxicación) del cianuro de su organismo. En esta situación, deben tomarse medicamentos con cobalamina diferentes
  • si sufre degeneración del nervio óptico (puede provocar problemas de visión al dañarse el nervio que transporta los mensajes visuales de la retina al cerebro).

Advertencias y precauciones

Consulte a su médico o farmacéutico antes de empezar a tomar este medicamento.

Al inicio del tratamiento, el médico debe diagnosticar su enfermedad para aclarar la razón subyacente de la deficiencia, lo que incluye la evaluación del funcionamiento de su tubo digestivo. El médico decidirá si la absorción de vitamina B12 a partir de los alimentos es insuficiente y si es necesaria la suplementación oral con este medicamento.

Debido a la naturaleza grave de la enfermedad, su médico probablemente querrá controlar su respuesta a este medicamento durante los 3 primeros meses. Esto implicará probablemente un análisis de su sangre. Si cumple bien el plan de tratamiento, éste puede ser de por vida, dependiendo de su enfermedad subyacente.

Si necesita diálisis renal periódica, su médico deberá realizarle análisis de sangre de forma regular y puede ser necesario reducir la dosis de este medicamento.

Si padece deficiencia de ácido fólico, puede disminuir su respuesta al tratamiento. En este caso, el uso de este medicamento debe ir acompañado de suplementos de ácido fólico.

Becaren contiene 1000 microgramos de cianocobalamina por comprimido. Si va a someterse a pruebas analíticas, debe informar a su médico o al personal del laboratorio de que está tomando o ha tomado recientemente este medicamento, ya que la cianocobalamina puede afectar a los resultados de dichas pruebas (incluidos los análisis de sangre, de orina, las pruebas cutáneas que utilizan alérgenos, etc.) debido a su color rojo. Este medicamento puede afectar a la determinación de anticuerpos contra el factor intrínseco (FI).

Niños y adolescentes

No administre este medicamento a niños y adolescentes menores de 18 años porque todavía no se conocen la seguridad y los beneficios de este medicamento.

Otros medicamentos y Becaren

Informe a su médico o farmacéutico si está tomando, ha tomado recientemente o pudiera tener que tomar cualquier otro medicamento, incluso los de venta sin receta.

Este medicamento puede verse afectado por:

  • Inhibidores de la bomba de protones (p. ej., el omeprazol) y antagonistas H2 de la histamina (p. ej., la cimetidina); ambos se utilizan para tratar el exceso de ácido en el estómago que causa indigestión o úlcera.
  • Colchicina, para el tratamiento de la gota.
  • Aminoglucósidos (p. ej., la neomicina) y el cloranfenicol, que son antibióticos.
  • Biguanidas, p. ej., la metformina, que se utiliza en el tratamiento de la diabetes.
  • Ácido aminosalicílico, que se utiliza para tratar la enfermedad intestinal inflamatoria.
  • Anticonceptivos orales.
  • Medicamentos antiepilépticos (p. ej., carbamacepina).
  • Sales de potasio.
  • Metildopa, que se utiliza para tratar la hipertensión arterial.
  • Uso prolongado de óxido nitroso (un gas utilizado para la anestesia).
  • Antipsicóticos de segunda generación (p. ej., olanzapina y risperidona).
  • Colestiramina, que se utiliza para reducir los niveles elevados de colesterol en la sangre.
  • Glucocorticoides (p. ej., prednisolona), que suelen utilizarse para tratar enfermedades inflamatorias.

Uso de Becaren con alcohol

El alcohol puede afectar a la absorción de este medicamento en su organismo.

Embarazo, lactancia y fertilidad

Si está embarazada o en periodo de lactancia, cree que podría estar embarazada o tiene intención de quedarse embarazada, consulte a su médico o farmacéutico antes de utilizar este medicamento. Como medida de precaución, es preferible evitar el uso de este medicamento durante el embarazo, a menos que el estado de la mujer requiera un tratamiento con cianocobalamina. Este medicamento puede ser utilizado durante la lactancia.

Conducción y uso de máquinas

Este medicamento no debería afectar a la capacidad para conducir y utilizar máquinas.

3. Cómo tomar Becaren

Siga exactamente las instrucciones de administración de este medicamento indicadas por su médico o farmacéutico. En caso de duda, consulte de nuevo a su médico o farmacéutico.

Uso en adultos

Dosis para el tratamiento del déficit de vitamina B12:

La dosis diaria recomendada es de 1 comprimido, que corresponde a 1000 microgramos de cianocobalamina, durante 8 semanas, en las siguientes indicaciones:

  • Tratamiento del déficit de vitamina B12 en pacientes con una ingesta alimentaria reducida (p. ej., dieta vegetariana).
  • Tratamiento del déficit de vitamina B12 y tratamiento de mantenimiento en pacientes que hayan sido diagnosticados de anemia perniciosa o que padezcan una mala absorción de vitamina B12.
  • Tratamiento en caso de uso prolongado de antagonistas de los receptores de histamina H2, inhibidores de la bomba de protones, aminosalicilatos y metformina.

Los pacientes con síntomas hematológicos o neurológicos graves de déficit de vitamina B12 se deben tratar inicialmente por vía parenteral hasta la normalización de los niveles sanguíneos.

Si se tolera bien, la vitamina B12 oral puede sustituirse de por vida en caso de anemia perniciosa o mala absorción de vitamina B12. La respuesta a la terapia debe monitorizarse regularmente. Ver también la sección 2. Advertencias y precauciones.

Dosis de mantenimiento:

1 comprimido a la semana como dosis de mantenimiento.

Su médico le indicará la duración del tratamiento, que dependerá de sus niveles en sangre de vitamina B12, que sean los normales.

Si tiene problemas renales

En pacientes con problemas renales moderados, este medicamento puede utilizarse a la dosis normal. En caso de problemas renales graves, se recomienda reducir la dosis. Además, se debe comprobar regularmente la cantidad de vitamina B12 en suero sanguíneo.

Si tiene problemas hepáticos

Se desconoce si puede tomar este medicamento con seguridad si tiene problemas hepáticos. Informe a su médico si tiene algún problema hepático.

Cómo tomar los comprimidos

Este medicamento se toma por vía oral. Los comprimidos deben tragarse enteros con algo de agua, preferiblemente por la mañana en ayunas. La forma en que su cuerpo reaccione al medicamento determina cuánto tiempo tiene que tomarlo. Para encontrar la dosis óptima, su médico tiene que realizar controles regulares.

Si toma más Becaren del que debe

Si toma más de este medicamento de lo que debe, hable con su médico, que decidirá las medidas necesarias.

No se ha notificado ningún caso de intoxicación.

No se conoce ningún antídoto para la sobredosis. En caso de sobredosis, deben tratarse los síntomas. En caso de sobredosis o ingestión accidental, consulte inmediatamente a su médico, farmacéutico o llame al Servicio de Información Toxicológica, teléfono 91 562 04 20, indicando el medicamento y la cantidad ingerida.

Si olvidó tomar Becaren

Si olvida tomar una dosis, debe tomarla en cuanto se acuerde, a menos que sea la hora de tomar la siguiente dosis. Si esto ocurre, no tome la dosis olvidada sino su dosis habitual a la hora correcta. No tome una dosis doble para compensar las dosis olvidadas.

Si interrumpe el tratamiento con Becaren

Siempre debe consultar a su médico antes de interrumpir el tratamiento.

Si tiene cualquier otra duda sobre el uso de este medicamento, pregunte a su médico o farmacéutico.

Medicine questions

Started taking the medicine and have questions?

Discuss your symptoms and treatment with a doctor online.

4. Posibles efectos adversos

Al igual que todos los medicamentos, este medicamento puede producir efectos adversos, aunque no todas las personas los sufran.

Poco frecuentes: pueden afectar a hasta 1 de cada 100 usuarios

  • Reacciones alérgicas graves con síntomas como urticaria, erupciones cutáneas o picor en amplias zonas del cuerpo.

Frecuencia no conocida (no puede estimarse a partir de los datos disponibles):

  • erupciones similares al acné y ampollas;
  • fiebre.

Comunicación de efectos adversos

Si experimenta cualquier tipo de efecto adverso, consulte a su médico o farmacéutico, incluso si se trata de posibles efectos adversos que no aparecen en este prospecto.

También puede comunicarlos directamente a través del sistema Español de Farmacovigilancia de Medicamentos de Uso Humano: www.notificaRAM.es. Mediante la comunicación de efectos adversos usted puede contribuir a proporcionar más información sobre la seguridad de este medicamento.

5. Conservación de Becaren

Mantener este medicamento fuera de la vista y del alcance de los niños.

Este medicamento no requiere condiciones especiales de conservación.

No utilice este medicamento después de la fecha de caducidad que aparece en el envase después de CAD.La fecha de caducidad es el último día del mes que se indica.

Los medicamentos no se deben tirar por los desagües ni a la basura. Deposite los envases y los medicamentos que no necesite en el punto SIGRE de la farmacia. En caso de duda pregunte a su farmacéutico cómo deshacerse de los envases y de los medicamentos que no necesita. De esta forma, ayudará a proteger el medio ambiente.

6. Contenido del envase e información adicional

Composición de Becaren

  • El principio activo es cianocobalamina (vitamina B12). Cada comprimido contiene 1.000 microgramos (1 mg) de cianocobalamina.
  • Los demás componentes (excipientes) son: celulosa microcristalina, manitol (E421), ácido esteárico, almidón pregelatinizado (de maíz), almidón de patata, crospovidona, estearato de magnesio, sílice coloidal anhidra.

Aspecto del producto y contenido del envase

Becaren se presenta en blísters de Aluminio-PVC/PVDC conteniendo 30 comprimidos.

Titular de la autorización de comercialización y responsable de la fabricación

Titular de la autorización de comercialización

Vegal Farmacéutica, S.L.

Vía de las Dos Castillas, 9C portal 2, 2ºC

28224 Pozuelo de Alarcón, Madrid

Responsable de la fabricación:

FineFoods & Pharmaceuticals N.T.M S.p.A

Via Grignano, 43 - 24041 BREMBAT (BG)

Italia

Fecha de la última revisión de este prospecto: Diciembre 2024

La información detallada de este medicamento está disponible en la página Web de la Agencia Española de Medicamentos y Productos Sanitarios (AEMPS) http://www.aemps.gob.es/

Online doctors for BECAREN 1000 micrograms TABLETS

Discuss questions about BECAREN 1000 micrograms TABLETS, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

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Doctor

Chikeluo Okeke

General medicine 4 years exp.

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

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

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

Common reasons for consultation:

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

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

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

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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

Daniel Cichi

Family medicine 24 years exp.

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

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

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

5.0 (54)
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

Antonio Cayatte

General medicine 44 years exp.

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.

Dr. Antonio Cayatte provides comprehensive care for a broad spectrum of common health concerns, including:

  • Respiratory & ENT: acute bronchitis, concerns related to pneumonia, sinusitis, tonsillitis, ear infections, sore throat conditions, and allergic rhinitis
  • Eye Health: allergic and infectious conjunctivitis, as well as red or irritated eyes
  • Digestive & Urinary: gastroesophageal reflux disease (GERD), gastritis, urinary tract infections, and cystitis
  • Chronic Conditions: hypertension, elevated cholesterol, and structured weight management planning
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Doctor

Sviatoslav Chekhun

Oncology 13 years exp.

Dr. Sviatoslav Chekhun is a medical oncologist with international clinical and research experience, specializing in modern medical oncology and a personalized approach to cancer treatment.

Currently (since 2025), he works as a Medical Oncologist at Institut Català d’Oncologia (Girona, Spain). Previously, he completed his residency in Medical Oncology and was involved in clinical research at Hospital Universitari Germans Trias i Pujol.

Dr. Chekhun has a strong academic and scientific background. He served as a lecturer in Internal Medicine at O.O. Bohomolets National Medical University and conducted research in experimental oncology at the R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology.

Earlier in his career, he worked as a medical oncologist at the Kyiv City Clinical Oncological Center and contributed to regulatory evaluation of medicinal products at the State Expert Center of the Ministry of Health of Ukraine.

When to consult Dr. Chekhun:

  •  for diagnosis or clarification of a cancer diagnosis
  •  to obtain a second opinion on an existing treatment plan 
  •  when you need a personalized treatment strategy 
  •  for interpretation of test results, CT, MRI, PET-CT, and biopsies 
  •  when choosing between treatment options (chemotherapy, targeted therapy, immunotherapy) 
  •  in case of doubts about treatment strategy or disease progression 

Consultation format

Dr. Chekhun provides online consultations, where you can receive:

  •  expert second opinion 
  •  detailed case review 
  •  recommendations based on current international treatment guidelines 
  •  personalized treatment and follow-up plan 

Important:
Prescription and monitoring of medications must be carried out by your treating physician in an in-person (offline) setting. An online consultation does not replace a face-to-face visit but helps you make more informed decisions about your treatment.

Dr. Sviatoslav Chekhun combines clinical practice, research, and international experience, enabling him to provide patients with modern, evidence-based approaches in oncology.

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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 BECAREN 1000 micrograms TABLETS?

BECAREN 1000 micrograms TABLETS requires a prescription in Spain. You can check with a doctor online whether this medicine may be appropriate for your situation.

What is the active substance in BECAREN 1000 micrograms TABLETS?

The active ingredient in BECAREN 1000 micrograms TABLETS is cyanocobalamin. This information helps identify medicines with the same composition but different brand names.

Who manufactures BECAREN 1000 micrograms TABLETS?

BECAREN 1000 micrograms TABLETS is manufactured by Italfarmaco S.A.. Pharmacy brands and packaging may differ depending on the distributor.

Which doctors can assess the use of BECAREN 1000 micrograms 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 BECAREN 1000 micrograms TABLETS is appropriate, depending on your situation and local regulations. You can book an online consultation to discuss your symptoms and possible next steps.

How to buy BECAREN 1000 micrograms TABLETS in Spain?

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 BECAREN 1000 micrograms TABLETS in Madrid, Barcelona, Seville, or Valencia at any local pharmacy with a valid prescription.

To obtain a prescription, you can use Oladoctor:

What are the alternatives to BECAREN 1000 micrograms TABLETS?

Other medicines with the same active substance (cyanocobalamin) include OPTOVITE B12 1000 micrograms Injectable Solution, VITAMIN B12 FARMASIERRA 1000 MICROGRAMS HARD CAPSULES, FOLI-DOCE 400/2 micrograms tablets. 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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