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LACTEST 0.45 g ORAL SOLUTION POWDER

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Prescription review online

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

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Talk to a doctor about this medicine

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

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

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 paciente

LacTEST 0,45 g polvo para solución oral

Gaxilosa

Lea todo el prospecto detenidamente antes de usar 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.
  • 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, incluso si se trata de efectos adversos que no aparecen en este prospecto. Ver sección 4.

Contenido del prospecto

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

1. Qué es LacTEST y para qué se utiliza

Este medicamento es solo para uso diagnóstico.

LacTEST está indicado para el diagnóstico no invasivo de la deficiencia de lactasa intestinal en niños y adolescentes a partir de 6 años, adultos y pacientes ancianos.

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 usar LacTEST

No useLacTEST:

  • Si es alérgico (hipersensible) a gaxilosa
  • Si usted padece de galactosemia o pentosuria
  • Si usted tiene una enfermedad renal grave, hipertensión portal (ascitis, cirrosis), mixedema (hipotiroidismo grave) o antecedentes de gastrectomía total y/o vagotomía, ya que todavía no se han realizado los estudios de seguridad en estas condiciones.

Advertencias y precauciones

Consulte a su médico antes de empezar a usar LacTEST:

  • Si tiene función renal anormal, ya que la seguridad y eficacia de LacTEST en pacientes con insuficiencia renal no han sido establecidas. Su función renal podría ser evaluada antes de administrarle LacTEST.
  • Si tiene función hepática anormal, ya que la seguridad y eficacia de LacTEST en pacientes con insuficiencia hepática no han sido establecidas.

Niños y adolescentes

LacTEST puede administrarse a niños y adolescentes a partir de 6 años con función renal normal.

La seguridad y eficacia de LacTEST en niños de 0 a 5 años de edad no han sido establecidas.

Uso de LacTEST con otros medicamentos

Comunique a su médico si está utilizando, ha utilizado recientemente o podría tener que utilizar cualquier otro medicamento.

No debe tomar aspirina o indometacina desde 48 horas antes de la realización de la prueba con LacTEST yhasta que haya finalizado la prueba, debido a que se ha descrito que la aspirina y la indometacina disminuyen la excreción de xilosa en la orina.

No se puede descartar completamente la posibilidad de interacción entre LacTEST 0,45 g y la arabinosa contenida en algunos alimentos, por tanto los pacientes serán advertidos de evitar tomar alimentos que contengan arabinosa al menos 10 horas (máximo 24 horas) antes de ingerir LacTEST 0,45 g y hasta la finalización de la prueba.

Embarazo y lactancia

Sí está embarazada o en periodo de lactancia, cree que podría estar embarazada o tiene intención de quedarse embarazada, consulte a su médico antes de utilizar este medicamento.

No se prevén efectos durante el embarazo y la lactancia.

Conducción y uso de máquinas

La influencia de LacTEST en la capacidad para conducir y uso de máquinas es nula o insignificante.

3. Cómo usar LacTEST

Siga exactamente las instrucciones de administración de este medicamento contenidas en este prospecto o las indicadas por su médico. En caso de duda, consulte con su médico.

La dosis recomendada en adultos y ancianos es 0,45 g disueltos en 100 ml de agua.

La realización de la prueba debe seguir la siguiente secuencia:

  1. Debe estar en ayunas 10 horas antes de la prueba, preferiblemente durante la noche anterior.
  2. Debe orinar dos horas antes de la prueba y de nuevo a los 15- 30 minutos previos a la prueba.
  3. Debe ingerir el contenido del sobre disuelto en agua.
  4. Deberá recoger la orina en un recipiente adecuado que se le proporcionará para tal fin durante las 5 horas que dura la prueba y deberá orinar inmediatamente antes de finalizar la misma. Durante este tiempo, usted debe beber hasta un máximo de 500 ml de agua para aumentar el deseo de orinar.

Para niños de 6 a 11 años, la prueba debe seguir la siguiente secuencia:

  1. Debe estar en ayunas 10 horas antes de la prueba, preferiblemente durante la noche anterior.
  2. Tres horas antes de tomar LacTEST puede desayunar una o algunas de las siguientes comidas: un huevo frito, pechuga de pollo a la plancha, arroz blanco y 2 lonchas de jamón serrano. El jamón curado/serrano tiene que obtenerse fresco para evitar al máximo la cantidad de aditivos.
  3. Debe orinar antes de la prueba.
  4. Debe ingerir el contenido del sobre disuelto en agua.
  5. Deberá recoger la orina en un recipiente adecuado que se le proporcionará para tal fin durante las 5 horas que dura la prueba y deberá orinar inmediatamente antes de finalizar la misma. Durante este tiempo, usted debe beber hasta un máximo de 500 ml de agua para aumentar el deseo de orinar.

No está autorizado el uso de este medicamento en niños de 0 a 5 años.

Uso en niños y adolescentes

LacTEST puede administrarse a niños y adolescentes a partir de 6 años con función renal normal.

No es necesario ajustar la dosis.

No está autorizado el uso de este medicamento en niños de 0-5 años.

Si usa másLacTESTdel que debe

Ya que solo se administran 0,45 g de gaxilosa, no se espera una sobredosis.

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, LacTEST puede producir efectos adversos, aunque no todas las personas los sufran.

Se ha informado de los siguientes efectos adversos:

Poco frecuentes (se observan en 1 a 10 de cada 1.000 pacientes)

Dolor de cabeza, distensión abdominal, dolor abdominal, náuseas, diarrea, vómitos, prurito, urticaria

Frecuencia desconocida (no se puede estimar a partir de los datos disponibles)

Mareos, síncope, flatulencia, malestar abdominal, dolor epigástrico, ruidos gastrointestinales, erupción cutánea.

Comunicación de efectos adversos

Si experimenta cualquier efecto adverso, consulte a su médico, incluso si se trata de 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 LacTEST

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

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

No utilice este medicamento si observa indicios visibles de deterioro.

Este medicamento se almacena en sobres, su forma farmacéutica; no necesita condiciones especiales de temperatura para su conservación.

Los medicamentos no se deben tirar por los desagües ni a la basura. Deposite los envases y los medicamentos que no necesita 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 deLacTEST

  • El principio activo es gaxilosa. Cada sobre contiene 0,45 g de gaxilosa.
  • No contiene otros ingredientes.

Aspecto del producto y contenido del envase.

LacTEST se presenta como un polvo blanco o casi blanco para solución oral contenido en un sobre.

Titular de la autorización del medicamento y responsable de la fabricación

Titular de la autorización

Venter Pharma S.L.

Almagro 1, 1º dcha

28010 Madrid

España

Responsable de la fabricación del medicamento

Infarmade, S.L.

Polígono Industrial La Isla

C/ Torre de los Herberos, 35

41703 Dos Hermanas. Sevilla

España

Representante Local

Juste Farma, S.L.U.

Avda. De San Pablo, 27.

28823 Coslada (Madrid)

España

Este medicamento está autorizado en los estados miembros del Espacio Económico Europeo con los siguientes nombres:

España LacTEST 0,45 g polvo para solución oral

Portugal LacTEST 0,45 g pó para solução oral

Fecha de la última revisión de este prospecto:Febrero 2025

Otras fuentes de información

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

Online doctors for LACTEST 0.45 g ORAL SOLUTION POWDER

Discuss questions about LACTEST 0.45 g ORAL SOLUTION POWDER, 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:

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  • 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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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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Doctor

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:
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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:

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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:

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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 LACTEST 0.45 g ORAL SOLUTION POWDER?
LACTEST 0.45 g ORAL SOLUTION POWDER requires a prescription in Spain. You can check with a doctor online whether this medicine may be appropriate for your situation.
How much does LACTEST 0.45 g ORAL SOLUTION POWDER cost in pharmacies?
The average pharmacy price for LACTEST 0.45 g ORAL SOLUTION POWDER is around 70.25 EUR. Prices may vary depending on the manufacturer and dosage form.
Who manufactures LACTEST 0.45 g ORAL SOLUTION POWDER?
LACTEST 0.45 g ORAL SOLUTION POWDER is manufactured by Venter Pharma S.L.. Pharmacy brands and packaging may differ depending on the distributor.
Which doctors can assess the use of LACTEST 0.45 g ORAL SOLUTION POWDER 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 LACTEST 0.45 g ORAL SOLUTION POWDER 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 LACTEST 0.45 g ORAL SOLUTION POWDER?
Other medicines with the same active substance () include ANTICUDE, APULCO ACOMETH 0.3%/0.3%/0.3% MEDICINAL COMPRESSED GAS, APULCO COHE 0.28%/9.5% MEDICINAL COMPRESSED GAS. 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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