Anyone with headache for than four days after taking Oxford-AstraZeneca jab should seek medical attention, says UK Regulator
People who experience a headache for more than four days after having the Oxford-AstraZeneca jab should seek medical attention, the UK’s medicines regulator has said.
They should also get help if they have bruising somewhere other than the injection site after a few days, it added.
The Medicines and Healthcare products Regulatory Agency (MHRA) said on Thursday its latest advice was a “precautionary measure” following a “very small” number of reports of an extremely rare form of blood clot occurring in conjunction with lowered platelets after vaccination.
Sinus vein thrombosis (CVST) describes the formation of a blood clot in the cerebral vein of the brain.
Symptoms include headache, blurred vision, fainting or loss of consciousness.
Thrombocytopenia describes when a person has a lowered number of platelets, which cells that help the blood to clot.
There have been five cases – a rate of one in 1 million people vaccinated – reported to the MHRA, which has assured the condition can also occur naturally in people who have not had the jab, along with people who have COVID-19.
It stressed that no causal link with the vaccine had been found, adding that investigations would continue.
Meanwhile, the agency said a “rigorous” scientific review had found no evidence of the jab causing blood clots in veins – a condition called venous thromboembolism.
Current advice is to still attend vaccination appointments as scheduled.
Sky News.
