What are the side effects of aspirin?

(More than 1% of people)
(0.1% to 1% of people)
(Less than 0.1% of people)
  • nausea
  • vomiting
  • indigestion (dyspepsia)
  • stomach ulcer or bleeding
  • bleeding that takes longer than normal to stop
  • headache
  • dizziness
  • noises or ringing in the ears or head (tinnitus; common with high doses)
  • skin reactions
  • anaemia due to low blood iron
  • kidney problems
  • ulcers in the food pipe (oesophagus)
  • major bleeding (in the gut, stomach, or elsewhere)
  • Reye’s syndrome (particularly in children who have taken aspirin)

Who can I ask about side effects?

If you’re concerned that you or someone in your care may have had side effects related to a medicine, seek medical advice. People with questions about their medicines or seeking general information about side effects can also call the NPS Medicines Line on 1300 633 424 (Monday-Friday, 9am-5pm AEST). To report possible side effects call the Adverse Medicine Events (AME) line on 1300 134 237 from anywhere in Australia (Monday–Friday, 9am–5pm AEST).