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LACTEST 0.45 g ORAL SOLUTION POWDER

LACTEST 0.45 g ORAL SOLUTION POWDER

Ask a doctor about a prescription for LACTEST 0.45 g ORAL SOLUTION POWDER

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Doctor

Yevgen Yakovenko

General surgery11 years of experience

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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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 LACTEST 0.45 g ORAL SOLUTION POWDER

Introduction

Package Leaflet: Information for the Patient

LacTEST 0.45 g Powder for Oral Solution

Gaxilosa

Read this package leaflet carefully before using this medicine, as it contains important information for you.

  • Keep this package leaflet, as you may need to read it again.
  • If you have any further questions, ask your doctor.
  • This medicine has been prescribed for you only. Do not pass it on to others, as it may harm them, even if their symptoms are the same as yours.
  • If you experience any side effects, talk to your doctor, even if they are not listed in this package leaflet. See section 4.

Contents of the Package Leaflet

  1. What is LacTEST and what is it used for
  2. What you need to know before taking LacTEST
  3. How to take LacTEST
  4. Possible side effects
  5. Storage of LacTEST
  6. Contents of the pack and further information

1. What is LacTEST and what is it used for

This medicinal product is for diagnostic use only.

LacTEST is indicated for the non-invasive diagnosis of intestinal lactase deficiency in children and adolescents from 6 years of age, adults, and elderly patients.

2. What you need to know before taking LacTEST

Do not useLacTEST:

  • If you are allergic (hypersensitive) to gaxilosa
  • If you have galactosemia or pentosuria
  • If you have severe kidney disease, portal hypertension (ascites, cirrhosis), myxedema (severe hypothyroidism), or a history of total gastrectomy and/or vagotomy, as safety studies have not been conducted in these conditions.

Warnings and precautions

Consult your doctor before taking LacTEST:

  • If you have abnormal kidney function, as the safety and efficacy of LacTEST have not been established in patients with renal insufficiency. Your kidney function may need to be evaluated before administering LacTEST.
  • If you have abnormal liver function, as the safety and efficacy of LacTEST have not been established in patients with liver insufficiency.

Children and adolescents

LacTEST can be administered to children and adolescents from 6 years of age with normal kidney function.

The safety and efficacy of LacTEST in children from 0 to 5 years of age have not been established .

Using LacTEST with other medicines

Tell your doctor if you are using, have recently used, or might use any other medicines.

Do not take aspirin or indomethacin from 48 hours before the LacTEST test and until the test is completed, as aspirin and indomethacin have been reported to decrease the excretion of xylose in the urine.

It cannot be completely ruled out that there may be an interaction between LacTEST 0.45 g and arabinose contained in some foods. Therefore, patients should be advised to avoid taking foods containing arabinose at least 10 hours (maximum 24 hours) before ingesting LacTEST 0.45 g and until the test is completed.

Pregnancy and breastfeeding

If you are pregnant or breastfeeding, think you may be pregnant, or plan to become pregnant, consult your doctor before using this medicine.

No effects are expected during pregnancy and breastfeeding.

Driving and using machines

The influence of LacTEST on the ability to drive and use machines is negligible or non-existent.

3. How to take LacTEST

Follow the instructions for administration of this medicine exactly as described in this package leaflet or as directed by your doctor. If you are unsure, consult your doctor.

The recommended dose in adults and the elderly is 0.45 g dissolved in 100 ml of water.

The test should be performed in the following sequence:

  1. You must be fasting for 10 hours before the test, preferably during the previous night.
  2. You must urinate 2 hours before the test and again 15-30 minutes before the test.
  3. You must ingest the contents of the sachet dissolved in water.
  4. You will need to collect your urine in a suitable container provided for this purpose during the 5 hours that the test lasts, and you must urinate immediately before completing the test. During this time, you should drink up to a maximum of 500 ml of water to increase the desire to urinate.

For children from 6 to 11 years of age, the test should be performed in the following sequence:

  1. You must be fasting for 10 hours before the test, preferably during the previous night.
  2. Three hours before taking LacTEST, you can have breakfast with one or more of the following foods: a fried egg, grilled chicken breast, white rice, and 2 slices of cured ham. The cured ham must be fresh to minimize the amount of additives.
  3. You must urinate before the test.
  4. You must ingest the contents of the sachet dissolved in water.
  5. You will need to collect your urine in a suitable container provided for this purpose during the 5 hours that the test lasts, and you must urinate immediately before completing the test. During this time, you should drink up to a maximum of 500 ml of water to increase the desire to urinate.

This medicinal product is not authorized for use in children from 0 to 5 years of age.

Use in children and adolescents

LacTEST can be administered to children and adolescents from 6 years of age with normal kidney function.

No dose adjustment is necessary.

This medicinal product is not authorized for use in children from 0-5 years of age.

If you use moreLacTESTthan you should

As only 0.45 g of gaxilosa is administered, an overdose is not expected.

4. Possible side effects

As with all medicines, LacTEST can cause side effects, although not everybody gets them.

The following side effects have been reported:

Uncommon (affects 1 to 10 users in 1,000)

Headache, abdominal distension, abdominal pain, nausea, diarrhea, vomiting, pruritus, urticaria

Frequency not known (cannot be estimated from the available data)

Dizziness, syncope, flatulence, abdominal discomfort, epigastric pain, gastrointestinal noises, skin rash.

Reporting of side effects

If you experience any side effects, talk to your doctor, even if they are not listed in this package leaflet. You can also report side effects directly through the Spanish Medicines and Healthcare Products Agency (AEMPS) website: www.notificaRAM.es. By reporting side effects, you can help provide more information on the safety of this medicine.

5. Storage of LacTEST

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

Do not use this medicine after the expiry date stated on the carton. The expiry date is the last day of the month stated.

Do not use this medicine if you notice visible signs of deterioration.

This medicine is stored in sachets; it does not require special temperature conditions for storage.

Medicines should not be disposed of via wastewater or household waste. Dispose of the packaging and any unused medicine in the pharmacy's SIGRE collection point. If you are unsure, ask your pharmacist how to dispose of the packaging and any unused medicine. This will help protect the environment.

6. Contents of the pack and further information

Composition ofLacTEST

  • The active substance is gaxilosa. Each sachet contains 0.45 g of gaxilosa.
  • It does not contain other ingredients.

Appearance of the product and contents of the pack.

LacTEST is presented as a white or almost white powder for oral solution contained in a sachet.

Marketing authorization holder and manufacturer

Marketing authorization holder

Venter Pharma S.L.

Almagro 1, 1º dcha

28010 Madrid

Spain

Manufacturer of the medicinal product

Infarmade, S.L.

Polígono Industrial La Isla

C/ Torre de los Herberos, 35

41703 Dos Hermanas. Sevilla

Spain

Local representative

Juste Farma, S.L.U.

Avda. De San Pablo, 27.

28823 Coslada (Madrid)

Spain

This medicinal product is authorized in the Member States of the European Economic Area under the following names:

Spain LacTEST 0.45 g powder for oral solution

Portugal LacTEST 0.45 g powder for oral solution

Date of the last revision of this package leaflet:February 2025

Other sources of information

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

About the medicine

How much does LACTEST 0.45 g ORAL SOLUTION POWDER cost in Spain ( 2025)?

The average price of LACTEST 0.45 g ORAL SOLUTION POWDER in December, 2025 is around 70.25 EUR. Prices may vary depending on the region, pharmacy, and whether a prescription is required. Always check with a local pharmacy or online source for the most accurate information.

Online doctors for LACTEST 0.45 g ORAL SOLUTION POWDER

Discuss dosage, side effects, interactions, contraindications, and prescription renewal for LACTEST 0.45 g ORAL SOLUTION POWDER – subject to medical assessment and local rules.

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Doctor

Liudmyla Boichuk

Family medicine10 years of experience

Dr Liudmyla Boichuk is a family medicine doctor providing diagnosis and treatment for a wide range of acute and chronic conditions in adults and children. She works with respiratory, cardiovascular and digestive system disorders and has extensive experience caring for patients with multiple coexisting conditions, where coordinated, whole-person management is essential.

She treats adults with respiratory illnesses such as pneumonia, COPD and bronchial asthma, as well as cardiovascular conditions including hypertension and ischaemic heart disease. Her practice also covers gastrointestinal complaints and chronic comorbidities that require careful, structured medical supervision.

Dr Boichuk provides care for children from birth, including acute respiratory viral infections, infectious diseases, pneumonia, bronchitis, bronchial obstruction syndromes and allergic reactions. She offers clear, evidence-based guidance to parents and ensures safe follow-up throughout the child’s recovery.

Her work also includes developing personalised immunisation plans and supporting families with long-term preventive care.

Known for her structured clinical approach and clear communication, Dr Liudmyla Boichuk offers patients of all ages comprehensive, reliable and evidence-based medical care.

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Yevgen Yakovenko

General surgery11 years of experience

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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She offers expert care for:

  • Headaches and migraines, including tension-type and cluster headaches.
  • Neck and back pain, both acute and chronic.
  • Chronic pain syndromes – fibromyalgia, neuropathic pain, post-traumatic pain.
  • Mononeuropathies – carpal tunnel syndrome, trigeminal neuralgia, facial nerve palsy.
  • Polyneuropathies – diabetic, toxic, and other types.
  • Multiple sclerosis – diagnosis, monitoring, long-term support.
  • Dizziness and coordination disorders.
  • Sleep disturbances – insomnia, daytime sleepiness, fragmented sleep.
  • Anxiety, depression, and stress-related conditions.

Dr. Agapova helps patients manage complex neurological symptoms like pain, numbness, weakness, poor sleep, and emotional distress. Her consultations focus on accurate diagnosis, clear explanation of findings, and tailored treatment plans.

If you’re struggling with chronic pain, migraines, nerve disorders, or sleep problems, Dr. Agapova offers professional guidance to restore your well-being.

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Main areas of expertise:

  • Diagnosis and treatment of arrhythmias: extrasystole, atrial fibrillation and flutter, supraventricular and ventricular tachycardia
  • Conduction disorders: AV blocks, sinoatrial block, bradyarrhythmias
  • ECG and Holter monitor interpretation, including data from smartwatches
  • Evaluation for interventional treatment: stenting, bypass surgery, valve replacement
  • Anticoagulant management (e.g., warfarin, DOACs) based on kidney function and clinical context
  • Perioperative advice on anticoagulant/antiplatelet therapy before dental procedures
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Dr Marta Reguero Capilla is an allergist and immunologist who works with both adults and children. She specialises in the diagnosis, treatment, and ongoing management of allergic and immune-related conditions through online consultations.

In her practice, Dr Reguero Capilla helps patients understand the causes of their symptoms, review test results, and choose appropriate treatment or monitoring strategies. Her consultations are suitable both for first-time assessments and for follow-up care over time.

Patients commonly consult Dr Marta Reguero Capilla for:

  • allergic rhinitis, seasonal allergies, and perennial allergy symptoms;
  • allergic conditions in adults and children;
  • bronchial asthma and allergy-related respiratory symptoms;
  • urticaria (acute and chronic) and angioedema;
  • food allergies and reactions to foods, additives, or medications;
  • atopic dermatitis, allergic rashes, and persistent itching;
  • unexplained or recurrent allergic reactions;
  • interpretation of laboratory tests, allergy testing, and immunology results;
  • immune system concerns, frequent infections, and reduced immune response;
  • ongoing medical follow-up and treatment adjustment.
Dr Reguero Capilla works in a structured and attentive manner, explaining medical decisions clearly and helping patients make informed choices about their own health or their child’s care.

When clinically appropriate, she may provide recommendations for further tests or referrals that patients can use within Spanish medical networks, including Sanitas and DKV, in accordance with the terms and conditions of those services.

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  • Preventive care and vaccination planning, including catch-up schedules for children.
  • Assessment of psychomotor, emotional, and physical development.
  • Diagnosis, treatment planning, and clinical monitoring for paediatric conditions.
  • Nutritional guidance for infants, including the choice of adapted milk formulas tailored to medical needs.
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  • Ongoing care for children with chronic or complex health conditions.
By combining paediatrics with a personalised approach, Dr. Savin ensures professional support that addresses both the physical health and overall well-being of children, while guiding parents at every stage of their child’s growth.
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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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With a patient-centred approach, Dr. Raevskii helps individuals manage both chronic illnesses and complex oncological cases. His consultations are guided by current medical standards and adapted to each patient’s needs.

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Dr. Fursenko helps patients manage symptoms early, avoid complications, and receive timely treatment. Online ENT consultations are a convenient way to access care for both urgent and recurring conditions — from anywhere.

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