See the DrugPatentWatch profile for aspirin
Can aspirin cause stomach ache?
Yes. Aspirin can irritate the stomach lining and increase stomach acid, which may lead to stomach pain (sometimes described as burning or cramping). It can also increase the risk of stomach bleeding.
Aspirin is also more likely to cause stomach problems if you:
- Take it on an empty stomach
- Use higher doses or take it more often
- Combine it with other medications that irritate the stomach (like ibuprofen/other NSAIDs)
- Drink alcohol or have a history of ulcers/GI bleeding
What should I do if aspirin is causing stomach pain?
Stop taking aspirin and switch to a safer option for pain or fever if you can.
For many people, acetaminophen (paracetamol) is easier on the stomach than aspirin, but avoid acetaminophen if you have serious liver disease or you’ve already taken a lot of it (check the label for total daily dose).
If you already took aspirin, you can consider:
- Taking it with food (if your clinician still wants you to use it later)
- Avoiding alcohol
- Not taking other NSAIDs at the same time
If your stomach pain is mild and goes away, that may be sufficient—but ongoing symptoms need medical advice.
When is stomach pain after aspirin an emergency?
Get urgent medical care if you have signs of stomach bleeding or a serious reaction, such as:
- Black, tarry stools
- Vomiting blood or vomit that looks like coffee grounds
- Severe or worsening abdominal pain
- Dizziness, fainting, or weakness
- Trouble breathing, swelling of the face/lips, or hives
What’s the difference between aspirin stomach pain and “normal” indigestion?
Indigestion (heartburn, mild nausea, bloating) can happen with many medicines, foods, or acid reflux.
Aspirin-related pain is more concerning when it is:
- Persistent or severe
- Associated with bleeding symptoms (black stools, blood in vomit)
- Happening after each dose
If pain keeps coming back after aspirin, you should not keep “pushing through” without a clinician’s input.
What other options can help if I’m trying to treat pain or fever?
If you need pain or fever relief and aspirin upsets your stomach, options often include:
- Acetaminophen (paracetamol), which is typically gentler on the stomach
If you are taking aspirin for a specific medical reason (for example, blood thinning after a heart event or stroke prevention), do not stop it without medical advice, because the reason for use matters.
Could “stomach ache” be something else?
Yes. Abdominal pain after aspirin could also be unrelated (viral stomach bug, gastritis from other causes, ulcer, gallbladder issues, appendix, etc.). If symptoms are new, strong, or last more than a day or two, it’s worth getting evaluated.
Tell me a bit more so I can guide you better
1) Did the pain start soon after taking aspirin (how many minutes/hours)?
2) How much aspirin and what type (regular or “enteric coated”)?
3) Do you have black stools, vomiting, or fever?
4) Are you taking any other meds (ibuprofen/naproxen, steroids, blood thinners like warfarin/apixaban, or alcohol regularly)?