Gastrointestinal disturbances such as nausea, indigestion, and vomiting are common side effects. Stomach ulcer, vomiting of blood, and passage of dark tarry stools may occur.
Aspirin may result in hypersensitivity reactions such as skin rashes, itchiness and swelling, sneezing, itchy, runny and congestion nose and tearing of the eyes and itchiness.
Aspirin increases bleeding time, decreases platelet adhesiveness. It may cause blood disorders, such as impaired blood clotting reaction, and low blood platelet count.