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NOKSON

NOKSON

Ask a doctor about a prescription for NOKSON

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Doctor

Svetlana Kolomeeva

Cardiology18 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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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 NOKSON

INSTRUCTIONS for medical use of the medicinal product PHENCAROL®(PHENCAROL)

Composition

active substance: chlorpheniramine; 1 tablet contains chlorpheniramine hydrochloride 25 mg; excipients: potato starch, sucrose, calcium stearate.

Pharmaceutical form

Tablets.

Main physical and chemical properties

Flat-cylindrical tablets of white or almost white color, with a facet.

Pharmacotherapeutic group

Antihistamines for systemic use.

ATC code R06A X31.

Pharmacological properties

Pharmacodynamics

Chlorpheniramine is a derivative of quinuclidylcarbinol, which reduces the effect of histamine on organs and systems. Chlorpheniramine is a competitive blocker of H1-receptors. Additionally, it activates the enzyme diamine oxidase, which breaks down approximately 30% of endogenous histamine. This explains the effectiveness of chlorpheniramine in patients who are insensitive to other antihistamines. Chlorpheniramine poorly penetrates the blood-brain barrier and has little effect on serotonin desamination processes in the brain, weakly affects monoamine oxidase activity. The antihistamine properties of chlorpheniramine are associated with the presence of a quinuclidine ring in its structure and the distance between the diphenylcarbinol group and the nitrogen atom. In terms of antihistamine activity and duration of action, chlorpheniramine surpasses dimedrol. Chlorpheniramine reduces the toxic effect of histamine, relieves or weakens its bronchoconstrictor effect and spasmodic effect on the smooth muscles of the intestine, has a moderate antiserotonin and weak anticholinergic effect, well-expressed antipruritic and desensitizing properties. Chlorpheniramine weakens the hypotensive effect of histamine and its effect on capillary permeability, does not directly affect cardiac activity and arterial pressure, does not have a protective effect in aconitine arrhythmias.

Chlorpheniramine does not suppress the central nervous system, but in case of individual increased sensitivity, a weak sedative effect is possible. The drug is slightly lipophilic, and its content in brain tissue is low (less than 0.05), which explains the absence of a suppressive effect on the central nervous system.

Pharmacokinetics

Chlorpheniramine is quickly absorbed from the gastrointestinal tract and is already present in the body's tissues after 30 minutes. The maximum concentration is reached after 1 hour.

Metabolites and the unchanged fraction of chlorpheniramine are mainly excreted in the urine, bile, and through the lungs within 48 hours.

Clinical characteristics

Indications

Pollinosis, food and drug allergy, other allergic diseases, acute and chronic urticaria, angioedema (Quincke's edema), hay fever, allergic rhinopathy, dermatoses (eczema, psoriasis, neurodermatitis, skin itching), as well as infectious-allergic reactions with a bronchospastic component.

Contraindications

Increased sensitivity to chlorpheniramine or to the excipients of the medicinal product.

Interaction with other medicinal products and other types of interactions

Phencarol®does not enhance the suppressive effect of alcohol and sedatives on the central nervous system, has weak M-cholinoblocking properties, but with decreased motor activity of the gastrointestinal tract, the absorption of slowly absorbed medications may be enhanced (e.g., indirect anticoagulants - coumarins).

Special warnings and precautions for use

The drug should be prescribed with caution to patients with severe cardiovascular, gastrointestinal, renal, and hepatic diseases.

The drug contains sucrose, which should be taken into account in patients with diabetes.

Patients with rare hereditary diseases, such as fructose intolerance or sucrase-isomaltase insufficiency, should not use the drug.

Use during pregnancy or breastfeeding

There are no sufficient studies in animals to assess the impact of the medicinal product on pregnancy.

The drug is contraindicated during the first trimester of pregnancy. It is not recommended to use the drug during the second and third trimesters of pregnancy.

There are no data on the penetration of the drug into breast milk, so the use of Phencarol®is contraindicated during breastfeeding.

Ability to affect the reaction rate when driving vehicles or using other mechanisms

Persons whose work requires rapid physical or mental reactions (drivers) should first establish individual sensitivity (through short-term use) to the sedative effect. If there is increased sensitivity, such persons should be especially careful when using the drug.

Method of administration and dosage

Phencarol®should be taken orally immediately after meals.

A single dose for adults is 25-50 mg 2-4 times a day.

In case of pollinosis, a daily dose of less than 75 mg is ineffective. The maximum daily dose is 200 mg. The duration of the treatment course is 10-15 days.

For children over 12 years old, 25 mg 2-3 times a day. The duration of the treatment course is 10-20 days. If necessary, the treatment course can be repeated (after consulting a doctor).

If a dose is missed, the treatment course should be continued using the previously prescribed doses. If necessary, consult a doctor.

Children

The drug can be used in children over 12 years old.

For children under 12 years old, it is recommended to use the drug in a different dosage (Phencarol®, 10 mg tablets).

Overdose

There have been no reports of overdose. A daily dose of up to 300 mg/day does not cause serious clinically significant side effects. High doses may cause dryness of the mucous membranes, headache, nausea, vomiting, epigastric pain, and dyspeptic symptoms.

Symptomatic treatment should be performed if necessary.

There is no specific antidote.

Side effects

From the nervous system: dizziness, headache.

Sometimes a weak sedative effect is possible, which manifests as weakness, drowsiness, slowing of response reactions.

From the gastrointestinal tract: dryness of the mucous membranes of the oral cavity, dyspeptic symptoms (nausea, vomiting, bitterness in the mouth), which usually pass when the dose is reduced or the drug is discontinued.

From the respiratory system, organs of the thoracic cavity, and mediastinum: sneezing, difficult breathing.

From the psyche: anxiety.

From the kidneys and urinary tract: proteinuria, interstitial nephritis.

From the musculoskeletal and connective tissue: joint pain.

From the organs of vision: lacrimation.

In persons with gastrointestinal diseases, the possibility of side effects increases.

If any undesirable effects occur, the use of the medicinal product should be discontinued and a doctor consulted.

Shelf life

5 years.

Storage conditions

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

Store in a place inaccessible to children.

Packaging

10 tablets in a blister pack. 2 blister packs in a cardboard box.

Release category

Without a prescription.

Manufacturer

JSC "Olainfarm" / AS "Olainfarm".

Manufacturer's location and address

5 Rupnicu street, Olaine, LV-2114, Latvia / 5 Rupnicu iela, Olaine, LV-2114, Latvija.

Alternatives to NOKSON in other countries

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

Alternative to NOKSON in Польша

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Dosage form: Таблетки, 45 мг + 33,75 мг + 22,5 мг
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Alternative to NOKSON in Испания

Dosage form: КАПСУЛА, 350 мг
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Dosage form: ОРАЛЬНЫЙ РАСТВОР/СУСПЕНЗИЯ, 94,2 МГ/МЛ экстракт корня валерианы
Prescription not required
Dosage form: ТАБЛЕТКА, 500 мг
Manufacturer: Tilman
Prescription not required
Dosage form: КАПСУЛА, 240 мг
Prescription not required

Online doctors for NOKSON

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

5.0(2)
Doctor

Svetlana Kolomeeva

Cardiology18 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.

CameraBook a video appointment
€50
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Mar Tabeshadze

Endocrinology11 years of experience

Dr. Mar Tabeshadze is a licensed endocrinologist and general practitioner in Spain. She provides online consultations for adults, offering medical support for a wide range of endocrine conditions and related health concerns.

  • Diagnostic consultations for suspected endocrine disorders
  • Management of thyroid conditions, including in pregnant women
  • Early detection and treatment of type 1 and type 2 diabetes, with personalised therapy plans
  • Obesity treatment: identifying underlying causes of weight gain, combining medication and non-pharmacological strategies, and long-term support
  • Diagnosis and treatment of endocrine-related skin, hair, and nail issues
  • Ongoing care for patients with osteoporosis, pituitary, and adrenal gland disorders
Dr. Tabeshadze takes a patient-centred approach based on evidence-based medicine. Her goal is to help patients achieve hormonal balance, manage chronic conditions effectively, and improve overall well-being through targeted, personalised care.
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Anna Biriukova

General medicine6 years of experience

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

Taisiya Minorskaya

Family medicine13 years of experience

Dr Taisiya Minorskaya is a family medicine doctor with an official licence to practise in Spain and over 12 years of clinical experience. She provides online consultations for adults and children, combining evidence-based medicine with a personalised, modern European approach.

She helps with:

  • Viral infections and cold symptoms (flu, sore throat, cough, runny nose)
  • Review and adjustment of antibiotics
  • Skin rashes and allergic reactions
  • Chronic condition flare-ups, high blood pressure, headaches, fatigue
  • Lab and test interpretation
  • Medication review and adaptation to European standards
  • Patient navigation: what tests are needed, which specialists to see, when an in-person visit is required
Dr Minorskaya also specialises in the diagnosis and management of gastrointestinal conditions, including bloating, abdominal pain, chronic nausea, IBS, and SIBO. She supports patients with unexplained physical symptoms that may be linked to somatisation or stress, helping them find relief and improve quality of life.

She offers care for people undergoing GLP-1 therapy (Ozempic, Mounjaro, and others) for weight management. Her support follows Spanish clinical guidelines, from treatment planning and side effect counselling to regular follow-ups and coordination with private or public healthcare providers.

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Antonio Cayatte

General medicine44 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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Daria Portnova

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Dr Daria Portnova is a psychiatrist and psychotherapist with over 30 years of clinical experience. She works with adults and adolescents aged 14 and over, providing online psychiatric and psychotherapeutic consultations.

In her practice, Dr Portnova supports patients facing the onset of mental health conditions, chronic psychiatric disorders, psychotic symptoms, trauma-related states, and complex emotional crises. Her work is structured and safety-focused, with an emphasis on stabilisation, accurate diagnosis, and long-term improvement in quality of life.

Patients consult Dr Daria Portnova for the following concerns:

  • existential crises and complex life situations;
  • loss, grief, and emotional exhaustion;
  • relationship difficulties, separation, and divorce;
  • psychological and psychiatric trauma, including complex PTSD (cPTSD);
  • anxiety disorders: generalised anxiety disorder and panic disorder;
  • social anxiety and social phobia;
  • obsessive-compulsive disorder (OCD);
  • sleep disorders;
  • depressive disorders;
  • bipolar affective disorder;
  • schizoaffective disorder;
  • schizophrenia;
  • personality disorders.
Dr Portnova combines psychiatric assessment with a psychotherapeutic approach. She works with evidence-based methods, including cognitive behavioural therapy (CBT) and third-wave approaches such as ACT, FACT, and CFT. Consultations are focused on clear clinical understanding, practical recommendations, and ongoing support over time.
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Anna Kondratiuk

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Main areas of support:

  • Depression and burnout
  • Anxiety, panic attacks, phobias
  • Post-traumatic stress disorder (PTSD)
  • Psychosomatic symptoms and sleep disturbances
  • Health anxiety (hypochondria)
  • Mental health support in chronic physical illness
  • Adjustment disorders and low self-esteem
Dr Kondratiuk focuses on creating a safe and respectful therapeutic environment where patients feel heard and supported. Her goal is to help each person achieve lasting improvements in their mental well-being.
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Alexander Nazarchuk

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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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Sergey Ilyasov

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Dr. Ilyasov helps patients in the following cases:

  • Chronic headaches (migraine, tension-type headache), back pain, neuropathic pain, dizziness, numbness in limbs, coordination disorders.
  • Anxiety disorders (panic attacks, generalized anxiety disorder), depression (including atypical and treatment-resistant forms), sleep disturbances (insomnia, hypersomnia, nightmares), stress, burnout.
  • Chronic pain syndromes and psychosomatic symptoms (e.g., irritable bowel syndrome related to stress, vegetative-vascular dystonia).
  • Behavioral disorders and concentration difficulties in adolescents (including ADHD, autism spectrum disorders), nervous tics.
  • Memory impairments, phobias, obsessive-compulsive disorder (OCD), emotional swings, and support for post-traumatic stress disorder (PTSD).

Thanks to his dual specialization in neurology and psychiatry, Dr Sergey Ilyasov offers integrated and evidence-based care for complex conditions requiring a multidisciplinary approach. His consultations focus on accurate diagnosis, development of an individualized treatment plan (including pharmacotherapy and psychotherapeutic methods), and long-term support adapted to each patient's unique needs.

Book an online consultation with Dr. Sergey Ilyasov to receive qualified assistance and improve your well-being today.

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Taisiia Proida

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She specialises in consultations and ongoing support for a wide range of mental health concerns, including:

  • Mood disorders: depression, bipolar disorder, postpartum depression.
  • Anxiety disorders: generalised anxiety, OCD, panic attacks, phobias.
  • Post-traumatic stress disorder (PTSD) and complex PTSD.
  • Attention deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD). Assessment is provided only after an initial psychiatric evaluation and during a follow-up appointment.
  • Personality disorders and emotional instability.
  • Cyclothymia and mood fluctuations.
  • Schizophrenia spectrum and related conditions.

Dr. Proida combines clinical expertise with an empathetic approach, offering structured support based on evidence-based practices. Her work integrates CBT techniques with medical management, with a focus on anxiety and depressive disorders.

She works with clients from different countries and cultural backgrounds, adapting her communication style and recommendations to individual needs. With experience in international clinical trials (Pfizer, Merck), she values clarity, trust, and collaborative partnership in patient care.

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