You are here:

Seizures in vaccine leaflet relate to rare blood clots in brain

Published on

Updated:

Nicola Swanborough

Seizures in vaccine leaflet relate to rare blood clots in brain

Callers to our Helpline have expressed concerns that the latest version of the patient information leaflet for the Covid-19 Astra Zeneca vaccine, mentions seizures as a possible side effect.

These seizures, however, are ‘symptom seizures’ which relate specifically to the rare cases of a blood clot as a side effect of the vaccine. Where a blood clot affects the brain, it may cause seizures. 

Professor Ley Sander, Medical Director at the Epilepsy Society, said: “There have been some extremely rare cases of blood clots occurring after the Astra Zeneca vaccine in people who have low numbers of blood platelets. If someone has a blood clot in the brain, they may experience a seizure as a result.

“This does not mean that the vaccine is likely to exacerbate seizures in people with epilepsy. This warning relates specifically to symptomatic seizures as a result of a blood clot.”

If you have any concerns about side effects following any of the Covid-19 vaccines, always seek medical advice.
 

LET'S STAY IN TOUCH...

We send monthly e-newsletters to keep you informed with tips for managing epilepsy, the latest news, inspirational stories, fundraising opportunities and further information from Epilepsy Society.

Read our privacy policy

It is always your choice as to whether you want to receive information from us. You may opt-out of our marketing communications by clicking the ‘unsubscribe’ link at the end of our marketing emails or through our unsubscribe number 01494 601 300.