Ask a doctor about a prescription for TROMALYT 300, PROLONGED-RELEASE HARD CAPSULES
PACKAGE LEAFLET: INFORMATION FOR THE USER
TROMALYT 300 mg, prolonged-release hard capsules
(acetylsalicylic acid)
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
Contents of the pack:
Tromalyt 300 mg belongs to a group of medicines called antiplatelet agents and its active ingredient is acetylsalicylic acid.
Tromalyt 300 mg is indicated to prevent the formation of thrombi in those patients who have previously suffered:
Do not take Tromalyt 300 mg:
Warnings and precautions
Consult your doctor before taking this medicine if you are in any of the situations described below:
Renal and hepatic insufficiency
This medicine should not be used in patients with renal or hepatic insufficiency.
Children
This medicine should not be administered to children under 16 years old, unless explicitly indicated by a doctor. The use of acetylsalicylic acid in children under 16 years old is related to the appearance of Reye's syndrome, a rare but serious disease.
Elderly
No dose reduction is necessary in elderly patients.
Inform your doctor or pharmacist if you are using or have recently used or may need to use another medication, including medications purchased without a prescription, homeopathic products, herbal remedies, and other health-related products, as it may be necessary to interrupt treatment or adjust the dose of one of them.
This is especially important in the case of:
If administered together, metamizole (a substance to reduce pain and fever) may reduce the effect of acetylsalicylic acid on platelet aggregation (blood cells stick together and form a blood clot). Therefore, this combination should be used with caution in patients taking low doses of acetylsalicylic acid as a cardioprotector.
Interference with diagnostic tests:
If you are going to have any diagnostic tests (including blood tests, urine tests, etc.), inform your doctor that you are taking this medicine, as it may alter the results.
Taking Tromalyt 300 mg with food, drinks, and alcohol:
Take this medicine after meals or with some food and with sufficient liquid.
If you habitually consume large amounts of alcohol (three or more alcoholic beverages - beer, wine, liquor, etc. per day), taking this medicine may cause gastric bleeding.
Pregnancy, breastfeeding, and fertility
Consult your doctor or pharmacist before using any medication.
Tromalyt 300 mg should only be used during the first and second trimester of pregnancy unless it is strictly necessary and at the lowest possible doses, and the treatment time should be reduced to the minimum possible.
During the third trimester of pregnancy, it is contraindicated
If you continue or start treatment with Tromalyt 300 mg during pregnancy on the advice of your doctor, then use Tromalyt 300 mg according to your doctor's instructions and do not use a dose higher than recommended.
Pregnancy - last trimester
Do not take more than 100 mg per day if you are in the last three months of pregnancy, as it may harm the fetus or cause problems during delivery. It may cause kidney and heart problems in the fetus. It may affect your tendency to bleed and that of your baby and cause the delivery to be delayed or prolonged more than expected.
If you take Tromalyt 300 mg at low doses (up to 100 mg per day inclusive), you will need strict obstetric control as indicated by your doctor.
Pregnancy - first and second trimester
Do not take Tromalyt 300 mg during the first six months of pregnancy unless it is absolutely necessary and advised by your doctor. If you need treatment during this period or while trying to become pregnant, the lowest dose should be used for the shortest possible time. If taken for more than a few days from the 20th week of pregnancy, Tromalyt 300 mg may cause kidney problems in the fetus, which can lead to low levels of amniotic fluid surrounding the baby (oligohydramnios) or narrowing of a blood vessel (ductus arteriosus) in the baby's heart.
If you need treatment for more than a few days, your doctor may recommend additional checks.
It is excreted in breast milk, so its use is not recommended during the breastfeeding period due to the risk of adverse effects in the child.
No effects on the ability to drive and use machines have been described at the doses administered with this specialty.
Tromalyt contains sucrose.
If your doctor has told you that you have an intolerance to certain sugars, consult with them before taking this medicine.
Follow exactly the administration instructions of this medicine indicated by your doctor. In case of doubt, consult your doctor or pharmacist.
If you think the action of Tromalyt 300 mg is too strong or too weak, tell your doctor or pharmacist.
The recommended dose is:
Take the capsules whole with the help of a little liquid, preferably during meals.
You can start treatment any day of the week, following the order established in the blister calendar, until complete cycles of four weeks are completed, according to the doctor's instructions.
Duration of treatment
Your doctor will indicate the duration of your treatment with Tromalyt 300 mg.
Do not suspend treatment before, as the expected beneficial results will not be obtained.
If you take more Tromalyt 300 mg than you should:
With very high doses above the recommended dose, you may experience headache, dizziness, ringing in the ears, blurred vision, drowsiness, sweating, rapid breathing, mental confusion, nausea, vomiting, and occasionally diarrhea.
Consult your doctor or pharmacist immediately, who will advise you on the measures to take.
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 medication and the amount ingested.
If you forget to take Tromalyt 300 mg:
Do not take a double dose to make up for forgotten doses.
Take the forgotten capsule with another meal on the same day. If a whole day has already passed, continue treatment without taking the forgotten capsule.
If you have any other doubts about the use of this product, ask your doctor or pharmacist.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
Due to its effect on platelet aggregation, acetylsalicylic acid may increase the risk of bleeding.
Frequent side effects:
Uncommon side effects:
Frequency not known:
Side effects in long-term treatments at high doses
The following may appear: dizziness, ringing in the ears, deafness, sweating, headache, confusion, and kidney problems. Treatment should be suspended immediately if the patient notices any episode of deafness, ringing in the ears, or dizziness.
Allergic reactions
In patients who have presented an allergic reaction to acetylsalicylic acid and other non-steroidal anti-inflammatory drugs, anaphylactic or anaphylactoid reactions may occur. This could also happen in patients who have not previously shown hypersensitivity (allergy) to these medications.
Cardiac disorders
Edema, hypertension, and heart failure.
Vascular disorders:
Bleeding, including severe bleeding (cerebral hemorrhage and gastrointestinal bleeding) and bleeding tendency (epistaxis, gum bleeding, purpura, etc.) with prolonged bleeding, post-procedure bleeding.
Gastrointestinal disorders
Diarrhea, flatulence, exacerbation of colitis and Crohn's disease, and gastritis
Disorders of the skin and subcutaneous tissue
Stevens-Johnson syndrome and toxic epidermal necrolysis
If you think any of the side effects you are suffering from is serious, or if you notice any side effect not mentioned in this leaflet, tell your doctor or pharmacist.
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 not listed in this leaflet. You can also report them directly through the Spanish Pharmacovigilance System for Human Use Medicines www.notificaRAM.es
By reporting side effects, you can help provide more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
Store in the original package.
Do not store above 30°C.
Expiration date
Do not use this medicine after the expiration date that appears on the package after Cad or Exp. The expiration date is the last day of the month indicated.
Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of the packaging and medicines you no longer need. This will help protect the environment.
Composition of Tromalyt 300 mg
The active ingredient is 300 mg of acetylsalicylic acid in the form of prolonged-release micropellets.
The other components are:
Inert cores: Cornstarch and Sucrose 20:80 and Coating: Copovidone, Eudragit L 12.5, Ethylcellulose, and Triacetin.
The components of the capsules are titanium dioxide, gelatin, erythrosine, and indigo carmine
Tromalyt 300 mg is presented in hard capsules. Each package contains 4 blister calendars with 7 capsules each.
Marketing authorization holder:
Viatris Healthcare Limited
Damastown Industrial Park
Mulhuddart, Dublin 15
Dublin
Ireland
Manufacturer:
ROTTAPHARM Ltd
Damastown Ind Park,
Mulhuddart, Dublin 15 (Ireland)
or
Laboratori Fundació Dau
C/ C, 12-14 Pol. Ind. Zona Franca,
08040 Barcelona
Spain
You can request more information about this medicine by contacting the local representative of the marketing authorization holder:
Viatris Pharmaceuticals, S.L.
C/ General Aranaz, 86
28027 - Madrid
Spain
Date of the last revision of this leaflet:June 2025
Other sources of information:
Detailed information about this medicine is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) https://www.aemps.gob.es/
The average price of TROMALYT 300, PROLONGED-RELEASE HARD CAPSULES in November, 2025 is around 2.5 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.
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Discuss dosage, side effects, interactions, contraindications, and prescription renewal for TROMALYT 300, PROLONGED-RELEASE HARD CAPSULES – subject to medical assessment and local rules.