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BESTER COMPLEX Hard Capsules

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About the medicine

How to use BESTER COMPLEX Hard Capsules

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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

Package Leaflet: Information for the User

Bester Complex Hard Capsules

Thiamine Hydrochloride / Pyridoxine Hydrochloride / Hydroxocobalamin Acetate

Read the entire package leaflet carefully before starting to take this medication, as it contains important information for you.

Follow exactly the administration instructions of the medication contained in this package leaflet or as indicated by your doctor or pharmacist.

  • Keep this package 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 side effects not listed in this package leaflet. See section 4.
  • You should consult a doctor if your condition worsens or does not improve after 7 days.

Contents of the Package Leaflet

  1. What is Bester Complex and what is it used for
  2. What you need to know before taking Bester Complex
  3. How to take Bester Complex
  4. Possible side effects
  5. Storage of Bester Complex
  6. Package Contents and Additional Information

1. What is Bester Complex and what is it used for

It is an association of the water-soluble vitamins of the B group: thiamine (vitamin B1), pyridoxine (vitamin B6), and hydroxocobalamin (vitamin B12), which are involved in numerous human metabolic processes.

It is indicated in: Prevention and treatment of states of deficiency of vitamins B1, B6, and B12, due to increased needs, reduced consumption, or absorption, which could manifest as symptoms such as back pain, among others; convalescences; insufficient diets.

Bester Complex is indicated for adults and adolescents over 14 years of age.

Doctor consultation

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Discuss your symptoms and treatment with a doctor online.

2. What you need to know before taking Bester Complex

Do not take Bester Complex

  • if you are allergic to thiamine, pyridoxine, hydroxocobalamin, or other cobalamins (e.g., cyanocobalamin), cobalt, or any of the other components of this medication (listed in section 6).
  • if you are being treated with levodopa (a medication used for Parkinson's disease).

Due to the high doses it contains:

  • if you have kidney or liver disease.
  • if you are pregnant or breastfeeding.
  • children under 14 years of age.

Warnings and Precautions

Consult your doctor or pharmacist before starting to take Bester Complex.

  • Do not take a higher dose than recommended or for a longer period than recommended. When high doses of pyridoxine (vitamin B6) are administered continuously, adverse effects of a neurological type (headache, tingling sensation, etc.) may occur.
  • If you have a blood disease, such as anemia, your doctor should check the cause before taking vitamin B12.
  • If you have conditions such as uremia (urea accumulation in the blood), infections, iron or folic acid deficiency, or are being treated with medications that have a suppressive effect on the bone marrow (e.g., chloramphenicol), the effect of vitamin B12 may be reduced.
  • There have been cases of dependence and withdrawal when taking 200 mg of pyridoxine for a month.
  • You should be cautious with sun exposure or avoid it and ultraviolet (UVA) lamp exposure while using this medication, as pyridoxine can cause sun sensitivity (photosensitivity).
  • If you have previously had an allergy to vitamin B1 on skin contact (contact dermatitis) for professional reasons, you may experience a relapse when taking this medication.
  • Interference with analytical tests: If you are going to undergo any diagnostic test (including blood tests, urine tests, skin tests using allergens, etc.), inform your doctor that you are taking this medication, as it may alter the results. In some determinations of urobilinogen, theophylline, and uric acid, false results may be produced.

Children

  • Bester Complex is contraindicated in children under 14 years of age (see "Do not take Bester Complex" section).

Other Medications and Bester Complex

Inform your doctor or pharmacist if you are using, have recently used, or may need to use any other medication.

Bester Complex may interact with the following medications:

  • Levodopa (medication for Parkinson's disease): may decrease its antiparkinsonian effect.
  • Phenobarbital, phenytoin (medications for epilepsy).
  • Amiodarone (medication used for the heart).
  • Altretamine or 5-fluorouracil (for cancer treatment).
  • Neuromuscular blocking medications (used in anesthesia for surgery).
  • Various medications can interfere with pyridoxine (vitamin B6) and may reduce its levels, including: antibiotics for tuberculosis treatment (isoniazid, cycloserine, ethionamide), penicillamine (for rheumatic diseases), hydralazine (for hypertension), theophylline (for asthma and other respiratory diseases), immunosuppressants such as corticosteroids or cyclosporine (used in organ transplantation).
  • Various medications can decrease the absorption of vitamin B12 or reduce its effect, such as: ascorbic acid (vitamin C), aminoglycoside antibiotics like neomycin, colchicine (for gout treatment), H-2 antagonists (medications against stomach acidity or ulcers, such as ranitidine, cimetidine, etc.), aminosalicylic acid (for intestinal diseases), omeprazole (for stomach acidity or ulcers), medications for epilepsy, metformin (for diabetes), chloramphenicol (antibiotic), or cobalt radiation.
  • Oral contraceptives can reduce the levels of both vitamin B6 and vitamin B12.

Taking Bester Complex with Food and Drinks

Excessive alcohol consumption reduces the absorption of vitamins.

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 medication.

Due to the high doses of vitamin B in this medication, which are much higher than those recommended during pregnancy and breastfeeding, it is contraindicated during these periods.

Driving and Using Machines

This medication can cause drowsiness in a small proportion of patients, who should not drive and/or operate machines during treatment.

3. How to Take Bester Complex

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

Adults and Adolescents Over 14 Years of Age

The recommended dose is 1 capsule per day.

In general, treatment should not exceed two weeks, although your doctor may recommend administration for more than 15 days.

If symptoms do not improve after 7 days of treatment, you should consult your doctor.

Oral route.

It is recommended to take the capsules with the help of water.

Patient with Hepatic or Renal Insufficiency

These patients should not take Bester Complex.

If You Take More Bester Complex Than You Should

If you have taken more Bester Complex than you should (high doses), you may experience symptoms such as: digestive disorders (diarrhea, nausea, and vomiting) and headache. You may also experience sun sensitivity with skin lesions; drowsiness, difficulty breathing, among other effects, depending on the dose, increased liver enzyme levels, decreased folic acid levels in the blood.

In rare cases, a severe allergic reaction (anaphylactic shock) may occur.

You may also experience sensitivity alterations, tingling, etc., in prolonged treatments.

In children, accidental ingestion of very high doses of vitamin B6 can also cause deep sedation, weakness, and difficulty breathing.

In case of overdose or accidental ingestion, consult your doctor or pharmacist immediately or go to a medical center, or call the Toxicological Information Service, phone 91 562 04 20, indicating the medication and the amount taken.

If You Forget to Take Bester Complex

Do not take a double dose to make up for forgotten doses.

If you have any other doubts about the use of this medication, ask your doctor or pharmacist.

Medicine questions

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Discuss your symptoms and treatment with a doctor online.

4. Possible Side Effects

Like all medications, this medication can cause side effects, although not everyone experiences them.

Uncommon side effects (may affect up to 1 in 100 people): nausea, vomiting, headache, drowsiness, tingling sensation in the skin (paresthesia) or sensitivity alterations, and skin rash. Allergic reactions (hypersensitivity reactions) to vitamins B1, B6, and B12 have also been described.

Other side effects that have been reported, with an unknown frequency (cannot be estimated from available data), are: digestive disorders, diarrhea, loss of appetite, photosensitivity with skin lesions such as blisters; changes in urine color, dizziness, restlessness, occasional insomnia; disorder with reduced sensitivity and tingling, numbness of feet or hands, which generally decrease when treatment is discontinued; a pyridoxine withdrawal syndrome more likely at high doses and in treatments of more than one month; in rare cases, anaphylactic reaction with itching, swelling, difficulty breathing, etc., late allergic reaction to vitamin B1 (see "Warnings and Precautions" in section 2).

If an allergic reaction occurs, you should discontinue treatment and receive treatment for the symptoms.

Reporting Side Effects

If you experience any type of side effect, consult your doctor or pharmacist, even if it is a possible side effect not listed in this package leaflet. You can also report them directly through the Spanish Medication Surveillance System for Human Use: https://www.notificaram.es. By reporting side effects, you can contribute to providing more information on the safety of this medication.

5. Storage of Bester Complex

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

No special storage conditions are required.

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

Medications should not be disposed of through wastewater or household waste. Deposit the packages and medications you no longer need at the SIGRE Point in the pharmacy. If in doubt, ask your pharmacist how to dispose of the packages and medications you no longer need. This will help protect the environment.

6. Package Contents and Additional Information

Bester Complex Composition

  • The active ingredients are Thiamine Hydrochloride (vitamin B1), Pyridoxine Hydrochloride (vitamin B6), and Hydroxocobalamin Acetate (vitamin B12). Each capsule contains 100 mg of thiamine hydrochloride, 150 mg of pyridoxine hydrochloride, and 1,500 micrograms of hydroxocobalamin acetate.
  • The other components are dibasic calcium phosphate dihydrate, sodium carboxymethylcellulose, microcrystalline cellulose, magnesium stearate, colloidal silicon dioxide, cornstarch; the capsule colorants are: erythrosine (E127), indigotine (E132), quinoline (E104), titanium dioxide (E171).

Product Appearance and Package Contents

Bester Complex is presented in hard capsules, orange and brown in color.

Each package contains 30 capsules.

Marketing Authorization Holder and Manufacturer

LABORATORIOS SALVAT, S.A.

Gall, 30-36.

08950 Esplugues de Llobregat (Barcelona) Spain

Date of the Last Revision of this Package Leaflet:October/2017.

Detailed information about this medication is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es/

Online doctors for BESTER COMPLEX Hard Capsules

Discuss questions about BESTER COMPLEX Hard Capsules, 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)
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  • 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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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
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  • 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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Anastasiia Hladkykh

Psychiatry 15 years exp.

Dr Anastasiia Hladkykh is a physician-psychotherapist and psychologist with over 14 years of experience working with individuals struggling with various types of addictions and their families. She provides online consultations for adults, combining medical knowledge with deep psychological support and practical tools.

Key areas of expertise:

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Experience and background:
  • Member of the German association Gesundheitpraktikerin and the NGO “Mit dem Sonne in jedem Herzen.”
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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
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  • 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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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
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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 BESTER COMPLEX Hard Capsules?
BESTER COMPLEX Hard Capsules does not require a prescription in Spain. You can check with a doctor online whether this medicine may be appropriate for your situation.
Who manufactures BESTER COMPLEX Hard Capsules?
BESTER COMPLEX Hard Capsules is manufactured by Laboratorios Salvat S.A.. Pharmacy brands and packaging may differ depending on the distributor.
Which doctors can assess the use of BESTER COMPLEX Hard Capsules 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 BESTER COMPLEX Hard Capsules 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 BESTER COMPLEX Hard Capsules?
Other medicines with the same active substance () include BENEXOL B1-B6-B12 FILM-COATED TABLETS, HYDROXIL B1-B6-B12 FILM-COATED TABLETS, NEUROMADE Hard Capsules. 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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