Vitaminum B1 Rihter

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.

Dr. Abdullah Alhasan is a physician specialising in cardiology and general medicine, with international clinical experience and a commitment to evidence-based care. He offers online consultations for adults, focusing on both acute symptoms and long-term health management.

Main areas of consultation:

• Chest pain, shortness of breath, heart palpitations, high blood pressure
• Hypertension control and cardiovascular disease prevention
• Interpretation of ECG, blood tests, and Holter monitor results
• Management of heart failure and coronary artery disease
• General medical issues: infections, fever, fatigue, gastrointestinal symptoms
• Guidance on diagnostics, treatment plans, and medication adjustments

Dr. Alhasan’s approach is based on thorough assessment, clear communication, and personalised care – helping patients understand their health and make informed decisions about their treatment.

Dr. Duarte Meneses is a licensed family medicine and general practice doctor based in Portugal, with additional expertise in occupational health. He provides online consultations for adults, offering medical support for both acute symptoms and chronic health conditions.

• Common symptoms such as fever, sore throat, cough, fatigue, or digestive issues
• Chronic conditions including hypertension, diabetes, high cholesterol, and thyroid problems
• Mental health concerns such as stress, sleep issues, anxiety, and burnout
• Preventive care: health check-ups, lifestyle advice, and follow-up for existing conditions
• Work-related health questions, sick leave documentation, and medical guidance for returning to work

Dr. Meneses graduated from the University of Beira Interior and has years of experience working with diverse patient populations. He is fluent in Portuguese, English, Spanish, and French.

His approach is friendly, clear, and focused on delivering practical medical advice tailored to each patient’s needs.

Dr. Ngozi Precious Okwuosa is a Primary Care Physician with over 5 years of clinical experience in Hungary, Sweden, and Nigeria. A graduate of the University of Szeged (cum laude), she offers online consultations for adults in the areas of internal medicine, women’s health, and postoperative care.

Key areas of consultation:

• Preventive and family medicine
• Women’s health, including gynaecology and obstetrics
• Chronic disease management: hypertension, diabetes, and more
• Mental health support, anxiety, and counselling
• Postoperative care and lab test interpretation

She has conducted research on the genetic background of stroke and is skilled in communicating with patients from diverse cultural backgrounds. Her approach combines clinical expertise with empathy and clear communication.

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.

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.

Dr Iryna Reznychenko is an obstetrician-gynaecologist, paediatric gynaecologist, and certified lactation consultant. She provides online consultations for women at all stages of life – from adolescence to menopause. Her work combines medical care for gynaecological conditions with dedicated support for breastfeeding challenges, both physical and emotional.

Areas of expertise:

• interpretation of test results and personalised treatment planning
• menstrual irregularities, PCOS, endometriosis
• abnormal uterine bleeding, endometrial hyperplasia, cervical dysplasia
• care during perimenopause and menopause, hormonal balance, cancer prevention
• breastfeeding issues: nipple pain, cracked skin, blocked ducts, low milk supply
• support during the postpartum and lactation period

Dr Reznychenko offers a clear, attentive and professional approach. Her consultations help prevent minor discomforts from developing into more serious concerns – all in a convenient online format.

Dr. Hocine Lokchiri is a French consultant with over 20 years of experience in General and Emergency Medicine. He works with adults and children, helping patients with urgent symptoms, infections, sudden health changes and everyday medical concerns that require timely evaluation. His background includes clinical practice in France, Switzerland and the United Arab Emirates, which allows him to navigate different healthcare systems and manage a wide range of conditions with confidence. Patients value his calm, structured approach, clear explanations and evidence-based decision-making.

Online consultations with Dr. Lokchiri are suitable for many situations when someone needs quick medical guidance, reassurance or a clear next step. Common reasons for booking include:

• fever, chills, fatigue and viral symptoms
• cough, sore throat, nasal congestion, breathing discomfort
• bronchitis and mild asthma flare-ups
• nausea, diarrhoea, abdominal pain, digestive infections
• rashes, allergic reactions, redness, insect bites
• muscle or joint pain, mild injuries, sprains
• headache, dizziness, migraine symptoms
• stress-related symptoms, sleep disturbances
• questions about test results and treatment plans
• management of chronic conditions in stable phases

Many patients reach out when symptoms appear suddenly and cause concern, when a child becomes unwell unexpectedly, when a rash changes or spreads, or when it’s unclear whether an in-person examination is necessary. His emergency medicine background is particularly valuable online, helping patients understand risk levels, identify warning signs and choose safe next steps.

Some situations are not suitable for online care. If a patient has loss of consciousness, severe chest pain, uncontrolled bleeding, seizures, major trauma or symptoms suggesting a stroke or heart attack, he will advise seeking immediate local emergency services. This improves safety and ensures patients receive the right level of care.

Dr. Lokchiri’s professional training includes:

• Advanced Trauma Life Support (ATLS)
• Basic and Advanced Cardiac Life Support (BLS/ACLS)
• Pediatric Advanced Life Support (PALS)
• Prehospital Trauma Life Support (PHTLS)
• eFAST and critical care transthoracic echocardiography
• aviation medicine

He is an active member of several professional organisations, including the French Society of Emergency Medicine (SFMU), the French Association for Emergency Physicians (AMUF) and the Swiss Society of Emergency and Rescue Medicine (SGNOR). In consultations, he works with clarity and precision, helping patients understand their symptoms, possible risks and the safest treatment options.

Dr. Andrei Popov is a licensed pain management specialist and general practitioner based in Spain. He provides expert online care for adults dealing with both chronic and acute pain, as well as a wide range of everyday health concerns.

He specialises in diagnosing and treating pain conditions that affect quality of life, including:

• Chronic pain lasting more than 3 months.
• Migraines and recurring headaches.
• Neck, back, lower back, and joint pain.
• Post-traumatic pain following injury or surgery.
• Nerve-related pain, fibromyalgia, and neuralgia.

In addition to pain management, Dr. Popov helps patients with:

• Respiratory infections (colds, bronchitis, pneumonia).
• High blood pressure and metabolic conditions such as diabetes.
• Preventive care and routine health check-ups.

Online consultations last up to 30 minutes and include a detailed symptom review, personalised treatment planning, and medical follow-up when needed.

Dr. Popov’s approach is rooted in evidence-based medicine, combined with individualised care tailored to each patient’s history, lifestyle, and clinical needs.

Dr. Jonathan Marshall Ben Ami is a licensed family medicine doctor in Spain. He provides comprehensive care for adults and children, combining general medicine with emergency care expertise to address both acute and chronic health concerns.

Dr. Ben Ami offers expert diagnosis, treatment, and follow-up for:

• Respiratory infections (cold, flu, bronchitis, pneumonia).
• ENT conditions such as sinusitis, ear infections, and tonsillitis.
• Digestive issues including gastritis, acid reflux, and irritable bowel syndrome (IBS).
• Urinary tract infections and other common infections.
• Management of chronic diseases: high blood pressure, diabetes, thyroid disorders.
• Acute conditions requiring urgent medical attention.
• Headaches, migraines, and minor injuries.
• Wound care, health check-ups, and ongoing prescriptions.

With a patient-focused and evidence-based approach, Dr. Ben Ami supports individuals at all stages of life — offering clear medical guidance, timely interventions, and continuity of care.