Prospect: information for the patient
Rimactán 300 mg hard capsules
rifampicina
Read this prospect carefully before starting to take this medicine, as it contains important information for you.
Contentsoftheprospect
1.What Rimactán is and for what it is used
2.What you need to knowbeforestarting totake Rimactán
3.How to take Rimactán
4.Possible adverse effects
5Storage of Rimactán
6.Contents of the package and additional information
Rimactán contains rifampicin, which belongs to a group of antibiotics called rifamycins. It acts by stopping the growth of bacteria that cause infections.
Antibiotics are used to treat bacterial infections and do not work for viral infections such as the flu or a cold.
It is essential to follow the instructions regarding dosage, administration, and treatment duration as indicated by your doctor.
Do not store or reuse this medication. If you have leftover antibiotics after treatment, return them to the pharmacy for proper disposal. Do not dispose of medications through the drain or in the trash.
Rimactán is indicated for the treatment of infections such as:
Rimactán is also indicated for the prevention of:
Rimactán should not be used for the treatment of meningococcal meningitis.
This treatment should follow the official recommendations for tuberculosis treatment, specifically those of the World Health Organization (WHO).
Do not take Rimactán:
Warnings and precautions
Consult your doctor or pharmacist before starting to take Rimactán:
At the beginning of treatment and in prolonged treatments, it is recommended to perform periodic blood cell counts and liver function tests.
Other medications and Rimactán
Inform your doctor or pharmacist if you are taking, have taken recently, or may need to take any other medication.
Rifampicin increases the elimination of many medications from the body, which may result in a decrease in their activity. Among these medications are:
In case you are taking any of these medications, your doctor may need to adjust your dose.
If you are taking hormonal systemic contraceptives, you should use another non-hormonal contraceptive method during treatment with rifampicin.
The simultaneous use of ketoconazole and rifampicin reduces the serum levels of both medications
The simultaneous use of rifampicin and enalapril reduces the activity of enalapril. If your clinical condition allows, your doctor may need to adjust your dose.
When used simultaneously, atovaquone and rifampicin show a decrease in atovaquone concentrations and an increase in rifampicin concentrations.
Do not take rifampicin with para-aminosalicylic acid (a medication used to treat tuberculosis) as this reduces the levels of rifampicin in the blood, so it is advisable to leave an interval of 8 hours between the intake of both medications.
Antacids reduce the absorption of rifampicin, so you should take your daily dose of rifampicin at least one hour before taking antacids.
The simultaneous use of rifampicin with halothane or isoniazid increases the potential for liver toxicity. Do not use rifampicin with halothane. If you have a treatment with rifampicin and isoniazid, your doctor will monitor your liver function periodically (see section "Warnings and precautions").
It is not recommended to use concomitantly with a group of antiretroviral medications, non-nucleoside reverse transcriptase inhibitors such as etravirine, nevirapine, or any protease inhibitor (alone or combined with an antiretroviral called ritonavir).
It is also not recommended to use concomitantly with maraviroc, another antiretroviral medication; if clinically justified, dose adjustment is required.
It is recommended to avoid the concomitant use of rifampicin with other antibiotics that cause vitamin K-dependent coagulopathy (reduction of blood clotting ability), such as cefazolin (or other cefalosporins of the same group), as this may cause severe coagulation disorders that may lead to a fatal outcome (especially with high doses).
Do not take rifampicin with the combination of saquinavir/ritonavir (antiretroviral medications).
Rimactan modifies the results of some laboratory tests, such as:
Therefore, in case necessary, these tests will be performed in the morning and before taking your dose of Rimactan.
In patients treated with rifampicin, cases of falsely positive results for the presence of opiates in urine have been reported when the analysis was performed with a test called ICMS (Interacción Cinética de Micropartículas en Solución). With this in mind, it is recommended to use other techniques in these patients, such as gas chromatography and mass spectrometry.
Taking Rimactán with food, drinks, and alcohol
The absorption of Rimactán is affected by food, so to ensure adequate absorption, you should take Rimactán on an empty stomach, that is:
at least 30 minutes before eating, or
at least 2 hours after eating.
Pregnancy, breastfeeding, and fertility
If you are pregnant or breastfeeding, or if you think you may be pregnant or plan to become pregnant, consult your doctor or pharmacist before using this medication.
Pregnancy
Rifampicin should be used in pregnant women or fertile women only when the potential benefits justify the potential risks to the fetus. When rifampicin is administered during the last weeks of pregnancy, it may cause postpartum hemorrhage in the mother and the newborn, for whom treatment with vitamin K1 is prescribed.
Breastfeeding
Rifampicin is excreted in breast milk, patients receiving rifampicin should not breastfeed unless their doctor considers that the benefit to the patient outweighs the potential risks to the baby.
Driving and using machines
The influence of rifampicin on the ability to drive and use machines is small to moderate. Rifampicin may cause certain adverse effects that may interfere with the ability to drive and use machines. If you experience these adverse effects (difficulty breathing, nausea, vomiting, muscle weakness), do not use machines.
Rimactán contains lactose.
This medication contains lactose. If your doctor has indicated that you have an intolerance to certain sugars, consult with him before taking this medication.
Follow exactly the administration instructions of this medication as indicated by your doctor. In case of doubt, consult your doctor or pharmacist again.
Your doctor will inform you of your daily dose and the duration of your treatment. Do not stop your treatment before. The dosage is individual for you and may be modified by your doctor based on your response to treatment.
If you estimate that the action of Rimactán is too strong or too weak, inform your doctor or pharmacist. You must take Rimactán on an empty stomach, half an hour before a meal with a glass of water.
Tuberculosis
The antibiotics currently used in combination treatment with rifampicin for tuberculosis are: isoniazid, pyrazinamide, ethambutol, and streptomycin.
Your doctor will inform you of the suitable combination of antibiotics for you and the dose you should take of each antibiotic.
The recommended dose is:
In children weighing less than 15 kg, there are other rifampicin presentations that are more suitable (rifampicin suspension).
Prevention of meningococcal meningitis
Nota: rifampicin should not be used for the treatment of meningococcal meningitis.
The recommended dose is:
You should not continue taking Rimactán if you have developed the disease.
Brucelosis
The usual dose of Rimactán in adults is 900 mg of rifampicin per day (3 Rimactán 300 mg capsules per day) in a single dose, in the morning on an empty stomach.
Rimactán 300 mg capsules should be taken in combination with a tetracycline, such as doxycycline.
The duration of treatment should be around 45 days.
Non-mycobacterial infections
The usual dose of Rimactán is:
Your doctor will inform you of the combination of antibiotics with which you should take Rimactán 300 mg capsules.
Your doctor will inform you of the duration of your treatment.
Tuberculosis:
Children ≤ 3 months: there are not enough data to establish a recommendation for children under three months.
Brucelosis and non-mycobacterial infections
There are not enough data for a posological recommendation in children and adolescents.
If you take more Rimactán than you should
If you have taken more Rimactán than you should, consult your doctor, pharmacist, or call the Toxicological Information Service, phone: 91 562 04 20, indicating the medication and the amount used.
The symptoms of overdose are: brownish-red or orange discoloration of skin, sputum, tears, sweat, and feces, nausea, vomiting, abdominal pain, liver inflammation, jaundice (yellowish skin), drowsiness, confusion, and convulsions.
If you forget to take Rimactán
If you forget a dose, take it as soon as you remember. However, if the next dose is close, skip the missed dose and take your next dose at the usual time.
Do not take a double dose to compensate for the missed doses.
If you interrupt the treatment with Rimactán
Continue your treatment as indicated by your doctor, do not stop taking this medication even if you feel better.
If you stop taking this medication too soon, your infection may return. Even the bacteria may become resistant to treatment.
If you have any other doubts about the use of this medication, ask your doctor or pharmacist.
Like all medicines, this medicine may cause side effects, although not everyone will experience them.
Severe side effects:
If you experience any of the following severe allergic reaction symptoms, stop taking this medicine and inform your doctor immediately or go to the nearest hospital:
Rifampicin should be discontinued immediately if severe hypersensitivity reactions such as thrombocytopenia, purpura, hemolytic anemia, dyspnea, and asthma attacks occur, or if shock or renal insufficiency occurs, as these are adverse reactions that rifampicin may cause in exceptional cases. Patients who develop these reactions should not be treated with rifampicin again.
Rifampicin should be discontinued if other signs of hypersensitivity, such as fever or skin reactions, appear. For safety reasons, treatment should not be continued or resumed with rifampicin.
Other side effects
Frequent side effects(may affect up to 1 in 10 patients):
Uncommon side effects(may affect up to 1 in 100 patients):
Rare side effects(may affect up to 1 in 1,000 patients):
Side effects of unknown frequency(cannot be estimated from available data):
Reporting of side effects
If you experience any type of side effect, consult your doctor or pharmacist, even if it is a possible side effect that does not appear in this leaflet. You can also report them directly through theSistema Español de Farmacovigilancia de Medicamentos de Uso Humano:https//www.notificaram.es. By reporting side effects, you can contribute to providing more information on the safety of this medicine.
Store in the original packaging to protect it from heat and humidity
Keep this medication out of the sight and reach of children.
Do not usethis medicationafter the expiration date that appears on thecontainerafter CAD/EXP. The expiration date is the last day of the month indicated.
Medicines should not be disposed of through drains or in the trash. Dispose of the containers and medications you no longer need at the SIGRE collection pointat the pharmacy. If in doubt, ask your pharmacist how to dispose of the containers and medications you no longer need. By doing so, you will help protect the environment.
Composition of Rimactán 300 mg capsules
Appearance of the product and content of the packaging
Durable capsule, opaque of type 1, two-colored, the lower part brownish-red and the upper part brown.
Rimactán 300 mg hard capsules are presented in packaging containing Al/PVC/PE/PVDC blisters of 10 and 60 hard capsules of 300 mg rifampicin.
Holder of the marketing authorizationand responsible for manufacturing
Holder of the marketing authorization
Sandoz Farmacéutica, S.A.
Centro Empresarial Parque Norte
Edificio Roble
C/ Serrano Galvache, 56
28033 Madrid
Spain
Responsible for manufacturing:
Sandoz GmbH
Biochemiestraße, 10
A-6250 Kundl
Austria
Last review date of this leaflet:April 2022
The detailed and updated information of this medicine is available on the website of the Spanish Agency for Medicines and Medical Devices (AEMPS) http://www.aemps.gob.es/ .
The average price of Rimactan 300 mg capsulas duras in July, 2025 is around 20.9 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.
Have questions about this medication or your symptoms? Connect with a licensed doctor for guidance and personalized care.