Bg pattern

CLARITHROMYCIN ALTER 500 mg FILM-COATED TABLETS

Prescription review online

Prescription review online

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

Talk to a doctor about this medicine

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 CLARITHROMYCIN ALTER 500 mg FILM-COATED TABLETS

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.

Show original

Introduction

Package Leaflet: Information for the User

Claritromicina Alter 500 mg film-coated tablets EFG

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

1. What is Claritromicina Alter and what is it used for

Claritromicina is a medicine that belongs to the group of macrolide antibiotics.

Informative text about the correct use of antibiotics and their proper elimination after treatment

Claritromicina Alter is used to treat infections caused by susceptible microorganisms in adults and adolescents (from 12 years of age to less than 18 years):

Adults:

  1. Infections of the upper respiratory tract, such as pharyngitis, tonsillitis, and sinusitis.
  2. Infections of the lower respiratory tract, such as acute bronchitis, exacerbation of chronic bronchitis, and bacterial pneumonia.
  3. Infections of the skin and soft tissues, such as folliculitis, cellulitis, and erysipelas.
  4. Infections caused by mycobacteria (a type of bacteria).
  5. Eradiation of the bacterium Helicobacter pyloriin patients with gastric or duodenal ulcers.

Adolescents (from 12 years of age to less than 18 years):

  1. Infections of the upper respiratory tract, such as pharyngitis.
  2. Infections of the lower respiratory tract, such as bronchitis and bacterial pneumonia.
  3. Acute otitis media.
  4. Infections of the skin and soft tissues, such as impetigo, folliculitis, cellulitis, and abscesses.
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 Claritromicina Alter

Do not take Claritromicina Alter:

  • If you are allergic to clarithromycin, other macrolide antibiotics such as erythromycin or azithromycin, or to any of the other ingredients of this medicine (listed in section 6).
  • If you are taking any of the following medicines: cisapride, pimozide, and terfenadine, as they may cause heart rhythm disturbances when administered with clarithromycin.
  • if you take medicines called ticagrelor, ivabradine, or ranolazine (for angina pectoris or to reduce the risk of myocardial infarction or stroke)
  • If you are taking a medicine called lomitapide
  • If you have abnormally low levels of potassium or magnesium in the blood (hypokalemia or hypomagnesemia)

Be careful with Claritromicina Alter:

  • Since clarithromycin is eliminated by the liver and kidneys, caution should be exercised in patients with hepatic function disorders, moderate or severe renal insufficiency, and in the elderly.
  • If you experience intense or persistent diarrhea, you should consult your doctor immediately.

Taking other medicines

Tell your doctor or pharmacist if you are taking or have recently taken any other medicines, including those obtained without a prescription.

Claritromicina may interact with the following medicines, so your doctor will take precautions when administering them together with clarithromycin, and may even adjust the dose of the same:

  • theophylline
  • carbamazepine
  • warfarin or other anticoagulants, such as dabigatran, rivaroxaban, apixaban, and edoxaban (to thin the blood)
  • ergot alkaloids
  • triazolam, midazolam
  • lovastatin, simvastatin
  • disopyramide
  • phenytoin
  • cyclosporin
  • cisapride, pimozide, and terfenadine (see section "Do not take Claritromicina Alter")

This is also important if you take medicines called:

  • hydroxychloroquine or chloroquine (used to treat diseases such as rheumatoid arthritis, or to treat or prevent malaria). Taking these medicines at the same time as clarithromycin may increase the possibility of abnormal heart rhythms and other serious adverse reactions that affect the heart.
  • corticosteroids, administered orally, by injection, or inhaled (used to suppress the immune system; this is useful in the treatment of a wide variety of diseases)

Pregnancy and breastfeeding

Consult your doctor or pharmacist before taking a medicine. The safety of clarithromycin during pregnancy has not been established, so your doctor will carefully weigh the benefits against the potential risk, especially during the first three months of pregnancy. Therefore, if you are pregnant or think you may be pregnant, you should inform your doctor before taking this medicine.

Claritromicina passes into breast milk, so breastfeeding should be interrupted during treatment with clarithromycin.

Driving and using machines

Since clarithromycin can cause dizziness, you should be careful when driving or using hazardous machinery during treatment with Claritromicina Alter.

Important information about some of the ingredients of Claritromicina Alter

The starch present in this medicine contains very low levels of gluten and is very unlikely to cause problems if you have celiac disease.

One tablet does not contain more than 189 micrograms of gluten.

If you have a wheat allergy (different from celiac disease), you should not take this medicine.

Medicine questions

Started taking the medicine and have questions?

Discuss your symptoms and treatment with a doctor online.

3. How to take Claritromicina Alter

Follow the instructions for administration of this medicine contained in this leaflet or as indicated by your doctor or pharmacist. In case of doubt, consult your doctor or pharmacist again. Claritromicina Alter is presented in film-coated tablets for oral administration. Take the tablets at the same time every day.

Your doctor will indicate the duration of your treatment with Claritromicina Alter. Do not stop treatment before, as your disease may worsen or reappear, even if you feel better.

The recommended dose of clarithromycin is:

Adults and adolescents (from 12 years of age to less than 18 years): the recommended dose is 250 mg twice a day. In more severe infections, the dose may be increased to 500 mg twice a day. The usual duration of treatment is 6 to 14 days.

Children under 12 years: the recommended dose is 7.5 mg/kg twice a day, up to a maximum of 500 mg twice a day. The usual duration of treatment is 5 to 10 days, depending on the type and severity of the infection.

This pharmaceutical form is not suitable for the administration of doses less than 250 mg or for patients who have swallowing problems.

Patients with gastric or duodenal ulcers associated withHelicobacter pylori:

The recommended dose of clarithromycin for the eradication of the bacterium Helicobacter pyloriis 500 mg twice or three times a day, in combination with omeprazole and another antibiotic, for 7 to 14 days.

Patients with renal insufficiency:

In patients with renal insufficiency, the dose of clarithromycin should be reduced by half.

If you think the action of Claritromicina Alter is too strong or too weak, tell your doctor or pharmacist.

If you take more Claritromicina Alter than you should

Consult your doctor or pharmacist immediately.

In case of overdose or accidental ingestion, consult the Toxicology Information Service, telephone 91 562 04 20, indicating the medicine and the amount ingested. It is recommended to take the packaging and the leaflet of the medicine to the healthcare professional.

The most frequent symptoms that accompany an overdose are gastrointestinal disorders.

If you forget to take Claritromicina Alter

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

Take the tablet as soon as you remember and continue respecting the 12-hour interval between intake and intake.

4. Possible side effects

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

The side effects that may appear most frequently are related to the digestive system, such as nausea, stomach discomfort, or indigestion, diarrhea, vomiting, and abdominal pain. Other adverse reactions include headaches, taste disturbances, and transient increases in liver enzymes.

Less frequently, liver disorders (which are generally reversible) have been observed, allergic reactions that can range from itching and mild skin rashes to severe allergies, transient adverse effects on the central nervous system (blurred vision, anxiety, insomnia, nightmares, confusion, hallucinations, and behavioral disorders), hearing loss (usually reversible with treatment interruption), alteration of smell usually accompanied by taste disturbance, gum inflammation, superficial inflammation of the tongue, fungal infections in the mouth, and tongue discoloration, as well as tooth discoloration (this discoloration usually disappears with a dental cleaning performed by a professional).

In rare cases, low blood sugar levels have been described, sometimes associated with the use of diabetes medications.

Exceptionally, cases of decreased white blood cells or platelets, as well as elevated creatinine in the blood, have been observed.

Rarely, alterations in the electrocardiogram or heart rhythm have been described.

Contact a doctor as soon as possible if you experience a severe skin reaction: a red and scaly rash with bumps under the skin and blisters (pustular exanthem). The frequency of this adverse effect is considered unknown (cannot be estimated from the available data).

Reporting of side effects

If you experience any side effect, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report them directly through the Spanish Pharmacovigilance System for Human Use Medicines: https://www.notificaRAM.es. By reporting side effects, you can help provide more information on the safety of this medicine.

5. Storage of Claritromicina Alter

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

This medicine does not require special storage conditions.

Do not use this medicine after the expiry date which is stated on the carton after EXP. The expiry date refers to the last day of the month indicated.

Medicines should not be disposed of via wastewater or household waste. Place the packaging and any unused medicine in the SIGRE collection point at the pharmacy. If in doubt, 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 other information

Composition ofClaritromicina Alter

The active ingredient is clarithromycin. Each tablet contains 500 mg of clarithromycin.

The excipients are: Polysorbate 80, povidone, wheat starch, microcrystalline cellulose, sodium croscarmellose, anhydrous colloidal silica, stearic acid, magnesium stearate, hypromellose (E 464), titanium dioxide (E 171), and glycerol triacetate.

Appearance of the product and contents of the pack

Claritromicina Alter 500 mg is presented in the form of film-coated tablets in packs with 14 or 21 tablets.

Other presentations: Claritromicina Alter 250 mg is available in packs with blisters containing 14 tablets

Marketing authorization holder and manufacturer

Laboratorios Alter, S.A.

C/ Mateo Inurria, 30

28036 Madrid

Spain

Last revision of this leaflet: April 2021

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 CLARITHROMYCIN ALTER 500 mg FILM-COATED TABLETS

Discuss questions about CLARITHROMYCIN ALTER 500 mg FILM-COATED TABLETS, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

0.0 (0)
Doctor

Hocine Lokchiri

General medicine 21 years exp.

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:

  • fever, chills, fatigue and viral symptoms
  • cough, sore throat, nasal congestion, breathing discomfort
  • bronchitis and mild asthma flare-ups
  • nausea, diarrhoea, abdominal pain, digestive infections
  • rashes, allergic reactions, redness, insect bites
  • muscle or joint pain, mild injuries, sprains
  • headache, dizziness, migraine symptoms
  • stress-related symptoms, sleep disturbances
  • questions about test results and treatment plans
  • management of chronic conditions in stable phases
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:

  • Advanced Trauma Life Support (ATLS)
  • Basic and Advanced Cardiac Life Support (BLS/ACLS)
  • Pediatric Advanced Life Support (PALS)
  • Prehospital Trauma Life Support (PHTLS)
  • eFAST and critical care transthoracic echocardiography
  • aviation medicine
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.
Camera Book a video appointment
€58
5.0 (3)
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
  • asthma and breathing difficulties
  • food and medication allergies
  • urticaria, atopic dermatitis and skin reactions
  • recurrent infections in children
  • sports-related health questions
  • general family medicine concerns
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.
Camera Book a video appointment
€80
5.0 (25)
Doctor

Lina Travkina

Family medicine 13 years exp.

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:

  • Respiratory conditions: colds, flu, acute and chronic bronchitis, mild to moderate pneumonia, bronchial asthma.
  • ENT and eye conditions: sinusitis, tonsillitis, pharyngitis, otitis, infectious and allergic conjunctivitis.
  • Digestive issues: gastritis, acid reflux (GERD), IBS, dyspepsia, bloating, constipation, diarrhoea, functional bowel symptoms, intestinal infections.
  • Urological and infectious diseases: acute and recurrent cystitis, bladder and kidney infections, prevention of recurrent UTIs, asymptomatic bacteriuria.
  • Chronic conditions: hypertension, diabetes, hypercholesterolemia, metabolic syndrome, thyroid disorders, excess weight.
  • Neurological and general symptoms: headache, migraine, dizziness, fatigue, sleep disturbances, reduced concentration, anxiety, asthenia.
  • Chronic pain support: back, neck, joint, and muscle pain, tension syndromes, pain associated with osteochondrosis and chronic conditions.

Additional care areas:

  • Preventive consultations and check-up planning.
  • Medical advice and follow-up consultations.
  • Test interpretation and diagnostic guidance.
  • Structured support for undiagnosed complaints.
  • Second opinion on diagnoses and treatment plans.
  • Nutritional and lifestyle support for vitamin deficiencies, anaemia, metabolic issues.
  • Post-operative recovery support and pain management.
  • Preconception counselling and postpartum support.
  • Immunity support and strategies to reduce frequency of infections.

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.

Camera Book a video appointment
€70
5.0 (764)
Doctor

Alina Tsurkan

Family medicine 13 years exp.

Dr. Alina Tsurkan is a licensed family medicine physician based in Portugal, offering online consultations for adults and children. She provides professional primary care, with a focus on prevention, accurate diagnosis, and long-term management of acute and chronic conditions.

Dr. Tsurkan supports patients with a wide range of health issues, including:

  • Respiratory infections: cold, flu, bronchitis, pneumonia, and lingering coughs.
  • ENT conditions: sinusitis, tonsillitis, otitis (ear infections), sore throat, allergic rhinitis.
  • Eye conditions: allergic or infectious conjunctivitis, red eyes, irritation.
  • Digestive issues: acid reflux (GERD), gastritis, irritable bowel syndrome (IBS), constipation, bloating, nausea.
  • Urinary and reproductive health: urinary tract infections (UTIs), cystitis, prevention of recurrent infections.
  • Chronic diseases: hypertension, elevated cholesterol, weight management.
  • Neurological complaints: headaches, migraines, sleep disturbances, fatigue, general weakness.
  • Children’s health: fever, infections, digestive issues, follow-ups, vaccination guidance.

She also provides:

  • IMT medical certificates for driving licence exchange in Portugal.
  • Personalised preventive care and wellness consultations.
  • Interpretation of test results and medical reports.
  • Follow-up care and medication review.
  • Support in managing multiple coexisting conditions.
  • Remote prescription management and medical documentation.

Dr. Tsurkan’s approach is evidence-based and holistic. She works closely with each patient to develop an individualised care plan that addresses both symptoms and root causes. Her goal is to empower patients to take control of their health and maintain well-being through lifestyle adjustments, routine check-ups, and early intervention.

Camera Book a video appointment
€55
5.0 (140)
Doctor

Yevgen Yakovenko

General surgery 12 years exp.

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.

Camera Book a video appointment
€50

Frequently Asked Questions

Is a prescription required for CLARITHROMYCIN ALTER 500 mg FILM-COATED TABLETS?
CLARITHROMYCIN ALTER 500 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.
What is the active substance in CLARITHROMYCIN ALTER 500 mg FILM-COATED TABLETS?
The active ingredient in CLARITHROMYCIN ALTER 500 mg FILM-COATED TABLETS is clarithromycin. This information helps identify medicines with the same composition but different brand names.
How much does CLARITHROMYCIN ALTER 500 mg FILM-COATED TABLETS cost in pharmacies?
The average pharmacy price for CLARITHROMYCIN ALTER 500 mg FILM-COATED TABLETS is around 12.24 EUR. Prices may vary depending on the manufacturer and dosage form.
Who manufactures CLARITHROMYCIN ALTER 500 mg FILM-COATED TABLETS?
CLARITHROMYCIN ALTER 500 mg FILM-COATED TABLETS is manufactured by Laboratorios Alter S.A.. Pharmacy brands and packaging may differ depending on the distributor.
Which doctors can assess the use of CLARITHROMYCIN ALTER 500 mg FILM-COATED TABLETS 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 CLARITHROMYCIN ALTER 500 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.
What are the alternatives to CLARITHROMYCIN ALTER 500 mg FILM-COATED TABLETS?
Other medicines with the same active substance (clarithromycin) include CLARITHROMYCIN ACCORD 500 mg FILM-COATED TABLETS, CLARITHROMYCIN ALMUS 500 mg FILM-COATED TABLETS, CLARITHROMYCIN ALTAN 500 mg LYOPHILIZED POWDER FOR SOLUTION FOR INFUSION. 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.
bg-pattern-dark

Stay informed about Oladoctor

News about new services, product updates and useful information for patients.

Follow us on social media