Headlines like “WARNING! THESE TABLETS CAN CAUSE BLOOD CLOTS, BLOOD THROMBOTS, AND HEART ATTACKS” are often designed to grab attention, but they are too vague to be useful. Many different medications are tablets, and the risks vary greatly depending on the specific drug and the person taking it.
Some medications can increase the risk of blood clots or cardiovascular events in certain people. Examples include:
- Estrogen-containing birth control pills and some forms of hormone replacement therapy, which can increase the risk of blood clots, particularly in people who smoke, are older, or have other risk factors.
- Some cancer medications and immune-modulating drugs, which may increase clotting risk.
- Certain pain relievers (NSAIDs), especially at higher doses or with long-term use, may increase the risk of heart attack or stroke in some people with cardiovascular risk factors.
However, many commonly prescribed tablets do not increase these risks, and some—such as statins, blood pressure medications, and antiplatelet drugs—are prescribed specifically to reduce the risk of heart attacks and strokes.
Warning signs of a possible blood clot
Seek urgent medical attention if you develop:
- Sudden swelling, pain, warmth, or redness in one leg
- Sudden shortness of breath
- Chest pain, especially if it worsens with breathing
- Coughing up blood
- Sudden weakness, numbness, trouble speaking, or vision changes (possible stroke)
Don’t stop a prescribed medication on your own
If you are concerned that a medication may increase your risk of blood clots or heart problems, do not stop taking it without speaking to the healthcare professional who prescribed it. Stopping some medications abruptly can itself be harmful.
If you tell me the name of the tablet you’re asking about, I can explain:
- Whether it is associated with blood clots or heart attack risk
- How common the risk is
- Who is most at risk
- What symptoms to watch for
