
Ask a doctor about a prescription for AZITHROMYCIN ALTER 500 mg ORAL SUSPENSION GRANULES
Package Leaflet: Information for the User
Azithromycin Alter 500 mggranules for oral suspension in sachetEFG
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
Contents of the pack
Azithromycin belongs to a group of antibiotics called macrolide antibiotics.
Antibiotics are used to treat bacterial infections and are not effective against viral infections such as the flu or common cold. It is important that you follow the instructions regarding dose, administration interval, and treatment duration as indicated by your doctor. Do not store or reuse this medicine. If you have any leftover antibiotic after completing treatment, return it to the pharmacy for proper disposal. Do not throw away medicines via wastewater or household waste. |
It is used to treat the following infections caused by microorganisms sensitive to azithromycin:
Do not take Azithromycin Alter
If you are allergic (hypersensitive) to azithromycin, to any other macrolide antibiotic, or to any of the components of this medicine (listed in section 6) or to any other macrolide or ketolide antibiotic, such as erythromycin or telithromycin.
Warnings and precautions
Consult your doctor or pharmacist before starting to take Azithromycin Alter if you:
If you experience severe and persistent diarrhea, especially with blood or mucus, during or after treatment, consult your doctor immediately.
If the symptoms persist after completing treatment with azithromycin or if you notice any new and persistent symptoms, inform your doctor.
Children and adolescents
This presentation is only suitable for children and adolescents over 45 kg in weight. For those weighing less, other presentations are recommended (see section 3).
Use of Azithromycin Alter with other medicines
Inform your doctor if you are taking, have recently taken, or may need to take any other medicine, including those obtained without a prescription.
Azithromycin may interact with other medicines. Inform your doctor or pharmacist if you are taking any of the following medicines:
No interactions have been observed between azithromycin and cetirizine (an antihistamine); didanosine, efavirenz, indinavir (for HIV infection); atorvastatin (for cholesterol and heart problems); carbamazepine (for epilepsy), cimetidine (an antacid); methylprednisolone (to suppress the immune system); midazolam, triazolam (sedatives); sildenafil (for impotence), theophylline (for asthma), and trimethoprim/sulfamethoxazole (a combination antibiotic).
If you are taking medicines that prolong the QT interval, you should not take this medicine.
Pregnancy, breastfeeding, and fertility
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.
There is not enough information on the use of azithromycin in pregnant women. Therefore, azithromycin is not recommended during pregnancy and breastfeeding unless, in the doctor's opinion, the benefit outweighs the risk to the fetus.
It has been reported that azithromycin passes into breast milk, but there are no adequate and well-controlled studies in breastfeeding women that have shown how azithromycin passes into breast milk. Therefore, azithromycin is not recommended during pregnancy and breastfeeding unless, in the doctor's opinion, the benefit outweighs the risk to the child.
Driving and using machines
There is no evidence that Azithromycin Alter affects the ability to drive or use machines. However, as drowsiness and dizziness have been reported during treatment with azithromycin, the patient should be cautious when driving or using machines until it is established how azithromycin affects them individually.
Important information about some of the ingredients of Azithromycin Alter
This medicine contains sucrose and glucose (in maltodextrin from corn). If your doctor has told you that you have an intolerance to some sugars, consult them before taking this medicine.
Azithromycin Alter effervescent granules contain sodium
This medicine contains 23.958 mg of sodium (the main component of cooking/table salt) in each sachet. This is equivalent to 1.2% of the maximum recommended daily intake of sodium for an adult.
Follow exactly the administration instructions of this medicine as indicated by your doctor or pharmacist. If you are in doubt, consult your doctor or pharmacist again.
Azithromycin Alter is administered orally. The medicine must be reconstituted before administration. There are other presentations available for different dosing regimens. Do not stop treatment prematurely, as there is a risk of relapse of the disease.
Reconstitution instructions
Pour the contents of the sachet into a glass and add a little water, then mix well. The resulting suspension should be taken immediately.
The dose will be determined by your doctor based on your individual needs and the type of infection. To achieve optimal efficacy, follow your doctor's instructions regarding dose and treatment duration.
As a general rule, the dose of medicine and the frequency of administration are as follows:
Adults (including elderly patients) and children with a weight over 45 kg:
The usual dose is 1500 mg divided into 3 or 5 days as follows:
Urethritis or cervicitis caused by Chlamydia
1000 mg taken as a single dose, in one day.
Children and adolescents under 45 kg in weight:
This presentation is only suitable for children and adolescents over 45 kg in weight, for whom the same dose as for adults is recommended. For those weighing less, other presentations are recommended.
Patients with liver or kidney problems
Inform your doctor if you have liver or kidney problems, as it may be necessary to modify the normal dose.
If you think the effect of Azithromycin Alter is too strong or too weak, tell your doctor or pharmacist.
If you take more Azithromycin Alter than you should
Inform your doctor or pharmacist immediately. Do not take a double dose to make up for forgotten doses.
In case of overdose or accidental ingestion, consult your doctor or pharmacist immediately or call the Toxicology Information Service, phone: 91 562 04 20, indicating the medicine and the amount taken. Bring this leaflet, any remaining sachets, and the packaging to the hospital or your doctor so they know what you have taken.
If you forget to take Azithromycin Alter
If you forget to take a dose, take it as soon as you remember, unless it is almost time for the next dose. Do not take a double dose to make up for forgotten doses.
If you stop taking Azithromycin Alter
Do not stop taking your medicine without consulting your doctor first, even if you feel better. It is very important that you continue taking Azithromycin Alter for the time indicated by your doctor, otherwise, the infection may recur. If you have any other questions about the use of this medicine, ask your doctor or pharmacist.
Like all medicines, this medicine can cause adverse effects, although not all people suffer from them.
If you experience any of the following, stop taking Azitromicina Alter and consult your doctor immediately or go to the emergency room of the nearest hospital:
These are very serious but rare adverse effects. You may need urgent medical attention or hospitalization.
Most of the adverse effects observed in clinical trials were mild to moderate, reversible after discontinuation of the drug, and mainly affected the digestive system, consisting mainly of nausea, vomiting, diarrhea, or abdominal pain. Potentially serious adverse reactions such as laryngeal edema (due to allergic reaction) or liver function alterations accompanied by yellowing of the skin occurred rarely.
The adverse effects reported during clinical trials and after marketing have been classified by frequency:
Very common (may affect more than 1 in 10 people)
Common (may affect up to 1 in 10 people)
Uncommon (may affect up to 1 in 100 people)
Rare (may affect up to 1 in 1,000 people)
Unknown frequency (cannot be estimated from the available data)
Severe allergic reaction that can cause shock (anaphylactic reaction)
The following adverse effects have been reported in patients treated with azithromycin for the prevention of Mycobacterium Avium Complex (MAC) infections:
Very common (may affect more than 1 in 10 people):
Common (may affect up to 1 in 10 people)
Uncommon (may affect up to 1 in 100 people)
Contact a doctor as soon as possible if you experience a severe skin reaction: a red, scaly rash with bumps under the skin and blisters (pustular exanthematous eruption). The frequency of this adverse effect is considered unknown (cannot be estimated from the available data).
Reporting of Adverse Effects
If you experience any type of adverse effect, consult your doctor or pharmacist, even if it is a possible adverse effect that is not listed in this leaflet. You can also report them through the Spanish Pharmacovigilance System for Human Use Medicines. https://www.notificaram.es. By reporting adverse effects, you can contribute to providing more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
Store below 30°C.
Do not use Azitromicina Alter after the expiration date stated on the packaging, after CAD. The expiration date is the last day of the month indicated.
Medicines should not be thrown away through wastewater or household waste. Deposit the packaging and medicines you no longer need in the SIGRE Point of the pharmacy. In case of doubt, ask your pharmacist how to dispose of the packaging and medicines you no longer need. This way, you will help protect the environment.
Composition of Azitromicina Alter
The active ingredient is azithromycin. Each sachet contains 500 mg of azithromycin (as dihydrate).
The other ingredients (excipients) are: sucrose, sodium tribasic phosphate, sodium lauryl sulfate, xanthan gum (E 415), artificial cherry, vanilla, and banana flavors (containing glucose in maltodextrin from corn), sodium carboxymethylcellulose, and sodium saccharin.
Appearance of the Product and Package Contents
Azitromicina Alter 500 mg is an off-white granulate with a cherry odor, for oral suspension in sachets.
The sachets are available in a package of 3 sachets.
Marketing Authorization Holder and Manufacturer
Laboratorios Alter, S.A.
Mateo Inurria, 30
28036 Madrid
Spain
Date of the Last Revision of this Leaflet: January 2019
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
The average price of AZITHROMYCIN ALTER 500 mg ORAL SUSPENSION GRANULES in November, 2025 is around 5.62 EUR. Prices may vary depending on the region, pharmacy, and whether a prescription is required. Always check with a local pharmacy or online source for the most accurate information.
The best alternatives with the same active ingredient and therapeutic effect.
Discuss dosage, side effects, interactions, contraindications, and prescription renewal for AZITHROMYCIN ALTER 500 mg ORAL SUSPENSION GRANULES – subject to medical assessment and local rules.