Can aspirin upset your stomach?
Yes. Aspirin can irritate the lining of your stomach and increase the risk of indigestion, burning, nausea, and stomach pain. This happens partly because aspirin inhibits protective prostaglandins that help keep the stomach lining intact.
What stomach problems does aspirin commonly cause?
People may notice symptoms such as:
- Heartburn or burning in the chest or upper abdomen
- Nausea
- Stomach cramps or discomfort
- Upset stomach/indigestion
These effects are more likely with higher doses and with “regular” (not buffered/enteric-coated) aspirin.
Who is more likely to get stomach irritation from aspirin?
The risk is higher if you have any of the following:
- A history of gastritis, ulcers, or gastrointestinal bleeding
- Age 60 or older
- Heavy alcohol use
- You take other medicines that also irritate the stomach or increase bleeding risk (for example, other NSAIDs like ibuprofen or naproxen, or blood thinners)
What makes it worse: dose, timing, or taking it with food?
Stomach upset can be worse with:
- Larger doses (or multiple doses)
- Taking aspirin on an empty stomach
Many people find that taking aspirin with food reduces irritation, but it does not eliminate the risk of ulcer or bleeding.
When should you stop and get medical help?
Seek urgent care if you have signs of gastrointestinal bleeding, such as:
- Vomiting blood or material that looks like coffee grounds
- Black, tarry stools
- Severe or worsening stomach pain
Are there alternatives if aspirin bothers your stomach?
Options depend on why you’re taking aspirin (for heart protection vs pain/fever). A clinician may suggest:
- Trying a different formulation (for example, buffered or enteric-coated), though these still can irritate the stomach for some people
- Using a different pain medicine or strategy, depending on your medical situation
If you’re taking aspirin for heart protection, do not stop it on your own without checking with your clinician.
Does enteric-coated aspirin still cause stomach issues?
Enteric-coated aspirin is designed to reduce direct stomach contact, but it can still cause stomach irritation and ulcer/bleeding risk in some people. The overall risk depends on your dose and your personal risk factors.
Can you take aspirin with other meds to reduce stomach effects?
Some people are prescribed stomach-protecting medicines (like proton pump inhibitors) when aspirin is needed and stomach risk is high. Whether that’s appropriate for you depends on your health history and the dose.
If you tell me your dose (mg), how often you take it, and why you take it (pain/fever vs heart prevention), I can help you think through the most likely cause of your symptoms and what questions to ask your clinician.