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TIXTAR 550 MG FILM-COATED TABLETS

TIXTAR 550 MG FILM-COATED TABLETS

Ask a doctor about a prescription for TIXTAR 550 MG FILM-COATED TABLETS

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Doctor

Nuno Tavares Lopes

Family medicine17 years of experience

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. He offers online consultations in Portuguese, English, and Spanish — combining global expertise with a patient-centred, evidence-based approach.

  • Emergency care: infections, fever, chest/abdominal pain, minor injuries, paediatric emergencies
  • Family medicine: hypertension, diabetes, cholesterol, chronic disease management
  • Travel medicine: pre-travel advice, vaccinations, fit-to-fly certificates, travel-related illnesses
  • Sexual and reproductive health: PrEP, STD prevention, counselling, treatment
  • Weight management and wellness: personalised weight loss programmes, lifestyle guidance
  • Skin and ENT issues: acne, eczema, allergies, rashes, sore throat, sinusitis
  • Pain management: acute and chronic pain, post-surgical care
  • Public health: prevention, health screenings, long-term monitoring
  • Sick leave (Baixa médica) connected to Segurança Social in Portugal
  • IMT medical certificates for driving licence exchange
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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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 TIXTAR 550 MG FILM-COATED TABLETS

Introduction

Package Leaflet: Information for the User

TIXTAR 550 mg film-coated tablets

rifaximin

Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.

  • Keep this leaflet, you may need to read it again.
  • If you have any further questions, ask your doctor or pharmacist.
  • This medicine has been prescribed for you only. Do not pass it on to others. It may harm them, even if their signs of illness are the same as yours.
  • If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. See section 4.

Contents of the pack

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

1. What is TIXTAR and what is it used for

TIXTAR contains the active substance rifaximin. Rifaximin is an antibiotic that eliminates bacteria that can cause a disease called hepatic encephalopathy (symptoms include agitation, confusion, muscle problems, difficulty speaking, and in some cases, coma).

Informative text on the correct use of antibiotics and the importance of following medical instructions

TIXTAR is used in adults with liver disease to reduce the recurrence of episodes of overt hepatic encephalopathy.

TIXTAR may be used alone or, more commonly, in combination with medications that contain lactulose (a laxative).

2. What you need to know before you take TIXTAR

Do not take TIXTAR:

  • if you are allergic to:

-rifaximin

-similar antibiotics (such as rifampicin or rifabutin)

-any of the other components of this medicine (listed in section 6)

  • if you have an intestinal obstruction

Warnings and precautions

Consult your doctor or pharmacist before starting to take TIXTAR.

If you have ever developed a severe skin rash or skin peeling, blisters, and/or sores in the mouth after taking rifaximin.

Be careful with rifaximin:

Severe skin reactions, including Stevens-Johnson syndrome and toxic epidermal necrolysis, have been reported in association with rifaximin treatment. Stop using rifaximin and seek immediate medical attention if you notice any of the symptoms related to these severe skin reactions described in section 4.

While taking TIXTAR, your urine may turn reddish. This is normal.

Treatment with any antibiotic, including rifaximin, can cause severe diarrhea. This can happen several months after you have finished taking the medicine. If you have severe diarrhea during or after using TIXTAR, you should stop taking TIXTAR and contact your doctor immediately.

If your liver problems are severe, your doctor should keep you under close observation.

TIXTAR contains sodium

This medicine contains less than 1 mmol of sodium (23 mg) per tablet; it is essentially "sodium-free".

Children and adolescents

TIXTAR is not recommended for children and adolescents under 18 years of age. This medicine has not been studied in children and adolescents.

Other medicines and TIXTAR

Tell your doctor or pharmacist if you are taking, have recently taken, or might take any other medicines.

Tell your doctor if you are taking any of the following medicines:

  • antibiotics (medicines to treat infections)
  • warfarin (medicine to prevent blood clotting)
  • antiepileptics (medicines to treat epilepsy)
  • antiarrhythmics (medicines to treat abnormal heart rhythm)
  • cyclosporin (immunosuppressant)
  • oral contraceptives

Pregnancy and breastfeeding

If you are pregnant or breastfeeding, think you may be pregnant, or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.

It is not known if TIXTAR can harm the fetus. Therefore, TIXTAR should not be used if you are pregnant.

It is not known if rifaximin can pass into breast milk. Therefore, TIXTAR should not be used if you are breastfeeding.

Driving and using machines

TIXTAR normally does not affect your ability to drive and use machines, but it can cause dizziness in some patients. If you feel dizzy, do not drive or operate machinery.

3. How to take TIXTAR

Follow exactly the administration instructions of this medicine given by your doctor. In case of doubt, consult your doctor or pharmacist again.

The recommended dose is 1 tablet twice a day taken with a glass of water.

Continue taking TIXTAR until your doctor tells you to stop.

If you take more TIXTAR than you should

If you have taken more tablets than you should, even if you do not notice any problems, consult your doctor, pharmacist, or call the Toxicology Information Service, phone 91-562 04 20, indicating the medicine and the amount taken.

If you forget to take TIXTAR

Take the next dose at the usual time. Do not take a double dose to make up for forgotten doses.

If you stop taking TIXTAR

Do not stop taking TIXTAR without consulting your doctor first, because the symptoms may come back.

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

4. Possible side effects

Like all medicines, this medicine can cause side effects, although not everybody gets them.

Stop using TIXTAR and seek immediate medical attention if you notice any of the following symptoms:

Uncommon(may affect up to 1 in 100 people)

  • If you have bleeding from swollen blood vessels in the throat (esophageal varices).
  • If you have severe diarrhea during or after using this medicine. This can be due to an intestinal infection.

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

  • Reddish, non-raised, target-like or circular patches on the trunk, often with central blisters, skin peeling, mouth ulcers, and ulcers on the genitals and eyes. These severe skin reactions can be preceded by fever and flu-like symptoms.
  • If you suffer an allergic reaction, hypersensitivity, or angioedema. The symptoms include:
    • swelling of the face, tongue, or throat
    • difficulty swallowing
    • hives and difficulty swallowing.
  • If you have any unexpected or unusual bleeding or bruising. This can be due to a decrease in platelets in the blood, which increases the risk of bleeding.

Other side effects that may occur:

Common(may affect up to 1 in 10 people)

  • Depressed mood
  • Dizziness
  • Headache
  • Breathing difficulties
  • Feeling sick or vomiting
  • Stomach pain or bloating
  • Diarrhea
  • Fluid accumulation in the abdominal cavity (ascites)
  • Skin rash or itching
  • Muscle cramps
  • Joint pain
  • Swelling of the ankles, feet, or fingers

Uncommon(may affect up to 1 in 100 people)

  • Fungal infections (such as candidiasis)
  • Urinary tract infections (such as cystitis)
  • Anemia (decrease in red blood cells that can make the skin pale and cause weakness or breathing difficulties)
  • Loss of appetite
  • Hyperkalemia (high potassium levels in the blood)
  • Confusion
  • Anxiety
  • Feeling of numbness
  • Sleep disturbances
  • Feeling of instability
  • Memory loss or poor memory
  • Decreased concentration
  • Decreased sense of touch
  • Seizures (epileptic fits)
  • Hot flushes
  • Fluid around the lungs (pleural effusion)
  • Abdominal pain
  • Dry mouth
  • Muscle pain
  • Need to urinate more frequently than usual
  • Difficulty or pain when urinating
  • Fever
  • Edema (swelling due to fluid accumulation in the body)
  • Falls

Rare(may affect up to 1 in 1,000 people)

  • Chest infections, including pneumonia
  • Cellulitis (inflammation of the tissue under the skin)
  • Infections of the upper respiratory tract (nose, mouth, throat)
  • Rhinitis (inflammation inside the nose)
  • Dehydration (loss of body water)
  • Changes in blood pressure
  • Chronic respiratory problems (such as chronic bronchitis)
  • Constipation
  • Back pain
  • Protein in the urine
  • Feeling of weakness
  • Bruising
  • Pain after surgery

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

  • Fainting or feeling of fainting
  • Skin irritation, eczema (dry, red, and itchy skin)
  • Decrease in platelets (seen in blood tests)
  • Changes in liver function (seen in blood tests)
  • Changes in blood clotting (International Normalized Ratio, seen in blood tests).

Reporting of side effects

If you experience any side effects, talk to your doctor or pharmacist, even if it is possible side effects not listed in this leaflet. You can also report side effects directly through the Spanish Medicines Agency's website: www.notificaRAM.es. By reporting side effects, you can help provide more information on the safety of this medicine.

5. Storage of TIXTAR

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

Do not use this medicine after the expiry date which is stated on the carton and blister after EXP. The expiry date is the last day of the month shown.

TIXTAR does not require any special storage conditions.

Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. These measures will help protect the environment.

6. Contents of the pack and other information

Composition of TIXTAR

The active substance is rifaximin. Each tablet contains 550 mg of rifaximin.

The other ingredients are:

  • Core of the tablet: sodium carboxymethyl starch type A (potato), glycerol distearate, anhydrous colloidal silica, talc, microcrystalline cellulose.
  • Tablet coating (opadry oy-s-34907): hypromellose, titanium dioxide (E171), disodium edetate, propylene glycol, iron oxide red (E172)

Appearance of the product and pack contents

Film-coated tablets, oval, convex, and pink, with "RX" engraved on one side.

TIXTAR is available in packs of 14, 28, 42, 56, and 98 tablets.

Not all pack sizes may be marketed.

Marketing authorization holder and manufacturer

Marketing authorization holder:

Alfasigma S.p.A.

Via Ragazzi del ’99, n. 5

40133 Bologna, ITALY

Manufacturer:

Alfasigma, S.p.A.

Via Enrico Fermi, 1

65020 Alanno, Pescara, ITALY

Alfasigma, S.p.A.

Via Pontina Km 30,400

00071 Pomezia, Rome, ITALY

Local representative:

Alfasigma España, S.L.

C/ Aribau 195, 4º

08021 Barcelona, SPAIN

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

TIXTAR: Italy, Spain

Date of last revision of this leaflet: May 2024

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

Online doctors for TIXTAR 550 MG FILM-COATED TABLETS

Discuss dosage, side effects, interactions, contraindications, and prescription renewal for TIXTAR 550 MG FILM-COATED TABLETS – subject to medical assessment and local rules.

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Doctor

Taisiya Minorskaya

Pediatrics12 years of experience

Dr. Taisiya Minorskaya is a licensed paediatrician and family medicine doctor based in Spain. She provides online consultations for children, adolescents, and adults, offering comprehensive care for acute symptoms, chronic conditions, prevention, and lifestyle-related concerns.

Support for children:

  • acute infections, cough, sore throat, fever, rashes;
  • sleep issues, developmental delays, nutrition and emotional support;
  • asthma, allergies, atopic dermatitis, and other chronic conditions;
  • routine vaccinations, preventive check-ups, health monitoring;
  • parental guidance on care, lifestyle, and adaptation.
Support for adults:
  • acute symptoms: infections, pain, blood pressure issues, digestive or sleep problems;
  • management of chronic conditions: hypertension, thyroid issues, metabolic disorders;
  • mental health support: anxiety, fatigue, mood swings;
  • weight management and obesity care: medical evaluation, personalised nutrition and activity plans, pharmacotherapy if needed;
  • preventive care, health screenings, test interpretation, and treatment adjustments.
Dr. Minorskaya combines an evidence-based approach with a holistic understanding of each patient’s age, needs, and family context. With her dual specialisation, she offers long-term medical support for both children and adults, helping improve quality of life and maintain overall health at every stage.
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Duarte Meneses

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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.

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Dr. Roman Raevskii is an oncologist and general practitioner. He provides online consultations focused on cancer-related care, early diagnosis, and personalised treatment – combining clinical expertise with a patient-centred approach.

Dr. Raevskii provides medical care in the following areas:

  • Diagnosis and management of common conditions: hypertension, diabetes, respiratory and digestive disorders.
  • Oncological consultations: early cancer detection, risk evaluation, and treatment navigation.
  • Supportive care for oncology patients — pain control, symptom relief, and side effect management.
  • Preventive medicine and health screenings.
  • Development of tailored treatment plans based on clinical guidelines.

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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Svetlana Kovalenko

Family medicine14 years of experience

Dr Svetlana Kovalenko is a family medicine doctor with over 14 years of experience and a medical degree from Kharkiv National Medical University. She offers online consultations for adults, supporting patients with both acute and chronic conditions, preventive care, and personalised medical advice.

What patients commonly consult her for:

  • High blood pressure, type 2 diabetes, cholesterol management
  • Cold and flu symptoms: fever, cough, sore throat
  • Fatigue, sleep problems, headaches, general discomfort
  • Ongoing care for chronic conditions and medication review
  • Help interpreting test results and lab reports
  • Preventive check-ups and advice on healthy lifestyle habits

Dr Kovalenko combines evidence-based practice with a respectful, patient-centred approach. She takes time to explain, listens attentively, and helps each person make confident, informed decisions about their health.

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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.

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Andrei Popov

General medicine6 years of experience

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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.

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Yevgen Yakovenko

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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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Areas of expertise:

  • Endocrinology: diabetes type 1 and type 2, prediabetes, thyroid disorders, metabolic syndrome, hormonal imbalance.
  • Obesity medicine: structured weight management plans, nutritional counselling, obesity-related health risks.
  • Gastroenterology: acid reflux (GERD), gastritis, irritable bowel syndrome (IBS), liver and biliary conditions.
  • Pediatric care: infections, respiratory symptoms, digestive issues, growth and development monitoring.
  • General surgery support: pre- and post-surgical consultations, wound care, rehabilitation.
  • Pain management: chronic and acute pain, back pain, joint pain, post-traumatic pain syndromes.
  • Cardiovascular health: hypertension, cholesterol control, risk assessment for heart disease.
  • Preventive medicine: regular check-ups, health screenings, long-term management of chronic conditions.

Dr. Horobets combines evidence-based medicine with a patient-centred approach. He carefully evaluates each patient’s medical history and symptoms, offering clear explanations and structured treatment plans adapted to individual needs.

Whether you need help managing diabetes, tackling weight-related health issues, interpreting lab results, or receiving general family medicine support, Dr. Horobets provides professional online care tailored to your specific health goals.

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