Some possible side effects of aspirin are stomach issues, nausea, hearing problems and heartburn. In some cases, aspirin can cause more serious side effects, such as bloody stool, vomiting blood or an allergic reaction, according to RxList. Patients who require daily aspirin therapy may be at a higher risk for a hemorrhagic stroke, as noted by Mayo Clinic.
There are many other side effects associated with aspirin. For example, gastrointestinal bleeding can occur due to daily aspirin therapy. Taking aspirin daily can lead to a possible stomach ulcer that can begin to bleed, warns Mayo Clinic. Bloody stool or vomiting blood may be signs of a gastrointestinal bleeding.
Allergic reaction can be serious side effects that may cause life-threatening symptoms, such as facial inflammation, breathing problems and hives. These types of side effects require prompt medical attention.
Aspirin can alleviate many symptoms of different conditions that include arthritis, muscle pain and colds. This medication is especially useful for the prevention of blood clots or heart attacks, as stated by WebMD. Because aspirin acts as a blood thinner, it is important not to combine it with other blood-thinning medications.
Aspirin can also interact with other medications, including corticosteroids, ibuprofen, antidepressants and valproic acid. There may also be interaction with certain dietary supplements, like Ginkgo biloba, bilberry and cat's claw. Additionally, children should not take aspirin because it can cause Reye's syndrome, a serious condition that affects the brain and liver.