Antiplatelets, low-dose aspirin - Side effects 

Common side effects

Common side effects of aspirin include:

• irritation of the stomach or bowel
• indigestion
• nausea (feeling sick)

Less common side effects

Less common side effects of aspirin include:

• worsening of asthma caused by narrowing of airways
• allergic reactions
• vomiting
• inflammation (swelling) of the stomach
• bleeding in the stomach
• bruising

Very rare side effects

A possible side effect of taking low-dose aspirin is haemorrhagic stroke (bleeding in the brain), but this is very rare.