That warning means the medication carries a risk of serious cardiovascular side effects. In plain language:
- Blood clots (thrombosis): A clot can form in a vein or artery and block blood flow.
- Heart attack: A clot can block an artery supplying the heart, damaging heart muscle.
- Stroke: Although not mentioned in your text, some medicines that increase clot risk can also increase the risk of a stroke if a clot blocks blood flow to the brain.
These warnings are often included because:
- The risk is known from clinical studies or reports after the medication was marketed.
- The risk may be higher in certain people, such as those who smoke, are older, have high blood pressure, have a history of blood clots, or have certain medical conditions.
If you’re taking a medicine with this warning, seek immediate medical attention if you develop symptoms such as:
- Sudden chest pain, pressure, or shortness of breath.
- Pain, swelling, warmth, or redness in one leg.
- Sudden weakness or numbness on one side of the body.
- Difficulty speaking or understanding speech.
- Sudden loss of vision or severe, unexplained headache.
If you can tell me the name of the tablets (or upload a photo of the packaging or leaflet), I can explain:
- Why this warning applies to that medication.
- How common the risk is.
- Who is most at risk.
- What precautions are recommended.
