Vaccinations

Your NHS guide to vaccinations for you and your family

What to do about side effects

If you, a doctor, nurse or pharmacist suspects that you or your child has had a possible side effect (also called an adverse reaction) to a vaccine, then it can be reported through the Yellow Card Scheme.

The Yellow Card Scheme is run by the Medicines and Healthcare products Regulatory Agency (MHRA) and is designed to pick up unexpected problems or new side effects. If a serious new side effect is identified, the MHRA will follow up the report. It may change the way a vaccine is used, or even take it off the market.

The scheme isn’t just for health professionals. The general public can also use the Yellow Card system to report a suspected side effect of a vaccine or medicine.

It's often hard to tell whether a possible side effect is due to a vaccine or something else. If you're in any doubt, it’s a good idea to alert the MHRA by sending a Yellow Card report.

Tell your doctor, nurse or pharmacist about the suspected side effect, and they'll report it for you. Or report it yourself in one of these ways:

  • Use the Yellow Card Scheme online reporting system.
  • Pick up a Yellow Card form from your GP surgery or your local pharmacy. Complete the form and send it to the address given on the form.
  • Call the Yellow Card freephone hotline on 0808 100 3352 (weekdays 10am to 2pm).

Now, read more about the safety of vaccinations.

Side effects: the Yellow Card Scheme

If your medicine is causing side effects, you can report them to the government's regulatory body using the Yellow Card Scheme, run by the Medicines and Healthcare products Regulatory Agency (MHRA).

Last reviewed: 12/04/2012

Next review due: 12/04/2014

Comments are personal views. Any information they give has not been checked and may not be accurate.

MartinEngland said on 03 February 2012

The Yellow Card Scheme is the main way of discovering side effects after a medicine has been made available in the UK.

However, some reported "side-effects" may not have been caused by the medicine.

For example, if you get a headache after taking a medicine it may have occurred due to the drug, or else due to another reason.

By reporting suspected side-effects, the MHRA will accumulate data which can be used to confirm a potential side-effect and also the risk of people experiencing it.

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janis louden said on 13 December 2011

I am left wondering if the MHRA are taking the yellow card reports seriously.

In the Suspected Adverse Reaction Analysis dated 29 July 2010 it states the following:
' It is essential to bear in mind that reports to the MHRA relate only to adverse medical events which the reporter considered could have been caused by the vaccine. therefore, cases may be true side effects or they may have been purely coincidental events due to underlying illness...'

So are the MHRA really saying, if your medicine is causing side effects, by all means report it, but we will attritbute this to an underlying illness?
Kind regards
Janis Louden

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