Hello there,
Aspirin or Ibuprofen can both cause upset stomach. Your doctor may ask you to take either with food or an antacid to avoid the stomach upset.
A drink of water or other fluid after taking chewable tablets can help your body absorb the drug.
Side effects may include abdominal cramps or pain, bloating and gas, constipation, diarrhea, dizziness, heartburn, indigestion, loss of appetite, nausea and vomiting.
Please consult your physician to see if there is another med you can use.
Take care and gentle hugs to you.
Kitt