AstraZeneca side effects: Headache, blurred vision and nausea may signal an emergency


In early March, a number of European countries suspended use of the AstraZeneca vaccine over concerns about an increased risk of thrombosis and now the UK Medicines and Healthcare Regulatory Agency (MHRA) has issued a warning over reported headaches after the vaccine.

Jo Jerrome, Managing Director of Thrombosis UK said: “Although serious side effects are very rare, if you experience any of the following symptoms around four days to four weeks after vaccination you should see a doctor urgently. ”

These signs include:

A new, severe headache that is not relieved by usual pain relievers or that gets worse

A headache that seems worse when lying down or bending over

An unusual headache which may be accompanied by blurred vision, nausea, or vomiting.

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The MHRA said: “Vaccinated people should also see a doctor immediately if, four or more days after vaccination, they develop a new onset or worsening of severe or persistent headaches with blurred vision, which do not respond to symptoms. simple pain relievers.

Symptoms that should cause concern are a new onset of severe and persistent headache, blurred vision, confusion, seizures, shortness of breath, chest pain, swelling of the legs, persistent abdominal pain, unusual skin bruising or round spots beyond the injection site.

In reality, for most people, this means that they show up to their GP, where they will be sorted by phone or e-consultation, to see if they need a face-to-face appointment. ”

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The European Medicines Agency has listed other alert side effects after vaccination, including:

  • Shortness of breath
  • Chest pain
  • Swelling of the leg
  • Persistent abdominal (tummy) pain
  • Neurological symptoms, including severe and persistent headache or blurred vision
  • Tiny spots of blood under the skin beyond the injection site

Why do side effects occur?

Vaccines work by simulating an immune response to an infectious disease.

It’s like a training run for the body on how to fight disease, and it also means various bodily reactions are triggered just like they would if you caught the actual disease.

Dr Jonas Nilsen, co-founder of Practio, added: “It is important to keep in mind that we cannot rule out the possibility that a very small number of people may experience adverse effects on the vaccine that we have. do not know yet. . ”

More than 32 million people in the UK have received at least one dose of a coronavirus vaccine – part of the largest vaccination program the country has ever launched.

According to BBC News, the number of first doses given each day now averages around 96,000, down from an average of around 500,000 in mid-March, as the second-dose schedule goes into effect .

On average, more than 340,000 second doses are now administered per day.

If you experience any unusual side effects after being vaccinated, it is essential that you see your healthcare professional immediately.


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