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About the medicine

How to use TIXTAR 550 MG FILM-COATED TABLETS

Contents of the leaflet

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

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).

Doctor consultation

Not sure if this medicine is right for you?

Discuss your symptoms and treatment with a doctor online.

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.

Medicine questions

Started taking the medicine and have questions?

Discuss your symptoms and treatment with a doctor online.

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 questions about TIXTAR 550 MG FILM-COATED TABLETS, including use, safety considerations and whether a prescription is appropriate, subject to medical assessment and local regulations.

Doctor
5.0(6)

Jorge Correa Bellido

General medicine7 years of experience
Licence no. 464626297

Dr. Jorge Correa Bellido is a Spanish physician who offers online consultations in Spanish and English. He graduated from the University of La Laguna and has a solid background in clinical practice and international research.

Throughout his career, he has participated in various medical and academic projects, including a research fellowship in Spain, where he contributed to evidence-based studies in the field of family medicine. This experience allowed him to broaden his global perspective on healthcare and comprehensive patient care.

Dr. Correa Bellido has worked with several healthcare providers in Spain, focusing particularly on patient-centered care and public health initiatives aimed at communities with limited access to healthcare services.

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He also treats infectious and allergic diseases, general health concerns, and provides guidance on prevention and healthy lifestyle habits.

His services include virtual consultations, diagnosis and management of acute and chronic diseases, prescription renewals, and personalized medical advice.

With a patient-centered approach and a strong commitment to continuous learning, Dr. Correa Bellido provides accessible and high-quality healthcare to patients both in Spain and around the world.

Book a video appointment
€86
Doctor

Chikeluo Okeke

General medicine4 years of experience

Dr Chikeluo Okeke is an internal medicine doctor with extensive international clinical experience. Originally from Nigeria, he has worked across multiple European healthcare systems and currently practises in Sweden. This professional path has given him a strong understanding of different medical approaches and the ability to work effectively with patients from diverse cultural and linguistic backgrounds.

Dr Okeke focuses on general internal medicine and adult primary care, combining clinical accuracy with careful attention to lifestyle, personal context, and everyday health concerns. His consultations are particularly well suited for people who seek medical advice online, live abroad, or need clear guidance without unnecessary complexity.

He provides online consultations covering symptom assessment, prevention, and long-term management of chronic conditions, helping patients understand what is happening and decide on appropriate next steps.

Common reasons for consultation:

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Dr Okeke is known for his clear communication, calm approach, and cultural awareness. He listens carefully, explains medical decisions in a structured way, and supports patients in making informed choices about their health.

Online consultations with Dr Chikeluo Okeke offer reliable internal medicine care without geographic limitations, focused on medical relevance, clarity, and patient comfort.

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€66
Doctor
5.0(21)

Nuno Tavares Lopes

General medicine18 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.

  • Emergency care: infections, fever, chest/abdominal pain, minor injuries, paediatric emergencies

  • Family medicine: hypertension, diabetes, cholesterol, chronic disease management

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  • Sick leave (Baixa médica) connected to Segurança Social in Portugal

  • 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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€70
Doctor
4.7(11)

Anastasiia Shalko

General medicine13 years of experience
Licence no. 52891

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
  • gastrointestinal complaints (nausea, diarrhoea, abdominal pain, gastroenteritis)
  • sudden changes in how a child or adult feels
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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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€56
Doctor
5.0(3)

Lina Travkina

General medicine13 years of experience

Dr. Lina Travkina is a licensed family and preventive medicine doctor based in Italy. She provides online consultations for adults and children, supporting patients across all stages of care – from acute symptom management to long-term health monitoring and prevention.Areas of medical care include:

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Additional care areas:

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Dr. Travkina combines evidence-based medicine with an attentive, personalised approach. Her consultations focus not only on treatment, but also on prevention, recovery, and long-term wellbeing.If during the consultation it becomes clear that your case requires in-person assessment or specialised care outside of her scope, the session will be terminated and the payment fully refunded.

Book a video appointment
€75
Doctor

Hocine Lokchiri

General medicine21 years of experience

Dr. Hocine Lokchiri is a French consultant with over 20 years of experience in General and Emergency Medicine. He works with adults and children, helping patients with urgent symptoms, infections, sudden health changes and everyday medical concerns that require timely evaluation. His background includes clinical practice in France, Switzerland and the United Arab Emirates, which allows him to navigate different healthcare systems and manage a wide range of conditions with confidence. Patients value his calm, structured approach, clear explanations and evidence-based decision-making.

Online consultations with Dr. Lokchiri are suitable for many situations when someone needs quick medical guidance, reassurance or a clear next step. Common reasons for booking include:

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Many patients reach out when symptoms appear suddenly and cause concern, when a child becomes unwell unexpectedly, when a rash changes or spreads, or when it’s unclear whether an in-person examination is necessary. His emergency medicine background is particularly valuable online, helping patients understand risk levels, identify warning signs and choose safe next steps.

Some situations are not suitable for online care. If a patient has loss of consciousness, severe chest pain, uncontrolled bleeding, seizures, major trauma or symptoms suggesting a stroke or heart attack, he will advise seeking immediate local emergency services. This improves safety and ensures patients receive the right level of care.

Dr. Lokchiri’s professional training includes:

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  • Basic and Advanced Cardiac Life Support (BLS/ACLS)
  • Pediatric Advanced Life Support (PALS)
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  • eFAST and critical care transthoracic echocardiography
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He is an active member of several professional organisations, including the French Society of Emergency Medicine (SFMU), the French Association for Emergency Physicians (AMUF) and the Swiss Society of Emergency and Rescue Medicine (SGNOR). In consultations, he works with clarity and precision, helping patients understand their symptoms, possible risks and the safest treatment options.
Book a video appointment
€64

Frequently Asked Questions

TIXTAR 550 MG FILM-COATED TABLETS requires a prescription in Spain. You can check with a doctor online whether this medicine may be appropriate for your situation.

The active ingredient in TIXTAR 550 MG FILM-COATED TABLETS is rifaximin. This information helps identify medicines with the same composition but different brand names.

TIXTAR 550 MG FILM-COATED TABLETS is manufactured by Alfasigma S.P.A.. Pharmacy brands and packaging may differ depending on the distributor.

Doctors such as Family doctors, Endocrinologists, Gastroenterologists, Oncologists, Sports medicine specialists, General medicine doctors, Lactation medicine doctors, Intensive care physicians may assess whether TIXTAR 550 MG FILM-COATED TABLETS is appropriate, depending on your situation and local regulations. You can book an online consultation to discuss your symptoms and possible next steps.

The prescription is issued by a doctor after assessing your health. In Spain, TIXTAR 550 MG FILM-COATED TABLETS is then dispensed in pharmacies with that prescription. An online consultation does not guarantee that a prescription will be issued: the decision always rests with the doctor.

To request an assessment, you can use Oladoctor:

Other medicines with the same active substance (rifaximin) include SPIRAXIN 200 mg FILM-COATED TABLETS, TIXTELLER 550 MG FILM-COATED TABLETS, DIFICLIR 200 mg FILM-COATED TABLETS. 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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