Side effects of aspirin

Like all medications, there's a risk of side effects from aspirin.

The most common side effectsare:

  • indigestion and stomach aches taking your medicine with food may help reduce this risk
  • bleeding or bruising moreeasily than normal

Uncommon and rareside effects include:

  • hives a raised, itchy rash
  • tinnitus hearing sounds that come from inside your body
  • breathing difficulties or an asthma attack
  • an allergic reaction this can causebreathing problems, swelling of the mouth, lips or throat, and a sudden rash
  • bleeding in the stomach this can cause dark, tar-like stools or vomiting blood
  • bleeding in the brain this can causea sudden,severe headache, vision problems and stroke symptoms , such as slurred speech and weakness on one side of the body

Speak to your doctor if you experience any concerning or troublesome side effects while takingaspirin.

Call 999 for an ambulance or go to your nearest accident and emergency (A&E) department if you think you're having a severe allergic reaction, or you have symptoms ofbleeding in your stomach or brain.

Content supplied by the NHS Website

Medically Reviewed by a doctor on 21 Dec 2018