Headlines like “these tablets can cause blood clots and heart attacks” can be alarming, but the truth depends on which tablets are being discussed. Many medicines have risks and benefits, and the risk of blood clots or heart attack varies greatly by the specific drug, dose, and the person taking it.
Some medication groups that may be linked to increased clotting or cardiovascular risk in certain situations include:
- Hormonal medicines (for example, some estrogen-containing contraceptives or hormone therapies) — may increase clot risk in some people.
- Certain cancer treatments — some can raise the risk of blood clots.
- Some anti-inflammatory medicines (NSAIDs) — certain types and higher doses may increase cardiovascular risk in people with existing risk factors.
- Some stimulant medications — may affect heart rate and blood pressure.
- Some blood-related or immune medications — may carry clotting risks depending on the drug.
However, many commonly used medicines do not cause blood clots, and stopping a prescribed medication suddenly can sometimes be harmful.
If you tell me the name of the tablet mentioned in the warning (or share a photo of the label), I can explain:
- whether blood clots or heart attacks are a known risk,
- how common the risk is,
- and what warning signs to watch for.
