MHRA: 'Seek medical attention if headache lasts more than four days after getting AZ jab'

18 March 2021, 18:50 | Updated: 18 March 2021, 19:29

MHRA's Dr June Raine advises when to seek medical attention after jab

By Harriet Whitehead

Anyone with a headache that lasts more than four days after being given the AstraZeneca jab should seek medical attention, the Medicines and Healthcare products Regulatory Agency (MHRA) has said.

The same applies to those who experience bruising beyond the site of vaccination after a few days, the MHRA added.

Dr June Raine, MHRA Chief Executive, said the agency's review shows that there is no evidence "that blood clots in veins are occurring more than would be expected in the absence of vaccination".

However, a detailed review following five reports of a rare form of blood clot in the cerebral veins occurring together with lowered platelets is ongoing, "but a causal relationship with the vaccine has not yet been established".

This has been reported in less than one in a million people vaccinated so far in the UK, and can also occur naturally.

She said: "As a precautionary measure we would advise anyone with a headache that lasts more than four days after vaccination or bruising beyond the site of vaccination after a few days to seek medical attention."

READ MORE: No proven link between AstraZeneca jab and blood clots, says UK regulator

READ MORE: 1.7m doses need re-testing and supplies from India delayed, Matt Hancock confirms

Boris Johnson announces he is having the AstraZeneca Covid vaccine

Mild flu-like symptoms remain one of the most common side effects of any Covid-19 vaccine, including headache, chills and fever.

These generally appear within a few hours and resolve within a day or two, but not everyone gets them.

Dr Raine added: "We will communicate further on the outcome of this review when it is complete."

READ MORE: European Medicines Agency says AstraZeneca vaccine is 'safe and effective'

Matt Hancock reveals reasons behind slower April Covid vaccine supply

She said: "We continually monitor safety during the use of all vaccines to protect the public and to ensure the benefits continue to outweigh the risks.

"Our thorough and careful review, alongside the critical assessment of leading, independent scientists, shows that there is no evidence that that blood clots in veins are occurring more than would be expected in the absence of vaccination, for either vaccine".

Therefore, she said the public should "continue to get your jab when it is your turn".

More Latest News

See more More Latest News

Amy Dowden said she was ‘heartbroken' as she left this year's Strictly Come Dancing

Amy Dowden says her ‘heart is breaking’ after she confirmed she will not return to Strictly

Anthony Scaramucci said the row between Trump and Labour would blow over

'Anglophile' Trump's row with Starmer will have 'no impact' on wider relations with UK, Anthony Scaramucci says

Nick Ferrari attends his first Trump rally in Pennsylvania as he meets the crowd in 'the poorest city in the United States'

Nick Ferrari attends his first Trump rally in Pennsylvania as he meets the crowd in 'the poorest city in the US'

Exclusive
Nick Ferrari bumps into Nigel Farage in Pennsylvania as he reflects on Trump's "remarkable" foreign policy achievements

Nick Ferrari bumps into Nigel Farage in Pennsylvania as he reflects on Trump's 'near-death' experience

Live
US Presidential Election 2024 LIVE: Millions of Americans head to the polls as election day arrives

US Presidential Election 2024 LIVE: Millions of Americans head to the polls in the final race for the White House

Proud Boys claim they will go to voting places as Trump repeats election fraud lies.

Proud Boys making plans to mobilise as Trump repeats election fraud lies

File photo of a real NHS dentist

Desperate Brits fall for scam 'fake NHS dentists' amid years-long waits for appointments

The Kremlin is suspected of plotting the attack

'Parcel bombs' that blew up in warehouse were 'rehearsal' for Russian explosion attack on flight to US

Keir Starmer is not set to ban smoking in pub gardens, contrary to earlier reports

Cigarettes will not be banned in pub gardens under new Labour plan create 'smoke-free generation'

Former President Donald Trump speaks at a campaign rally in Reading, Pennsylvania

Trump threatens Mexico with 100% tariffs unless it cracks down on border crossings

Bridget Phillipson told Tonight with Andrew Marr that the fee hike was necessary to secure the future of universities.

‘Universities must reform’ says education secretary after first hike in tuition fees in 8 years

Two more cases of a new strain of mpox have been detected in the UK, officials say

Two more cases of new mpox strain detected in UK

Anya Taylor-Joy and her musician husband were the victims of a terrifying robbery

Anya Taylor-Joy and musician husband victims of burglary at London mansion

Exclusive
Nigel Farage speaking to LBC's Nick Ferrari about new Tory leader Kemi Badenoch

'The Remainers are back in town': Nigel Farage says Kemi Badenoch will bring 'no change whatsoever' to Tories

Amy Dowden

Strictly Come Dancing star Amy Dowden will not return to show this year following 'medical emergency'

Scott Paterson murdered his landlady Annette Smith

Tenant murdered and dismembered elderly landlady before posing as her by sending Christmas cards to family