What are the possible side-effects

Like all medicines, vaccines can cause side effects. Most are mild or moderate, tend to be less common in older people, and go away within a few days. If side effects such as pain and/or fever are troublesome, they can be treated by medicines for pain and fever such as paracetamol.

Common side effects: These may affect more than 1 in 10 people

  • Having a painful, heavy feeling and tenderness in the arm where you had your injection. This tends to be worst around 1-2 days after the vaccine.
  • Feeling tired.
  • Having a headache.
  • General aches, or mild flu like symptoms.

Although feeling feverish is not uncommon for two to three days, a high temperature is unusual.

You can find more information on the vaccine information leaflets

There is a small increased risk of extremely rare blood clots associated with the Astra Zeneca Vaccine – See more


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