Yellow Card Scheme - MHRA
You can report suspected side effects (also known as adverse drug reactions) to a medicine, vaccine, herbal or complementary remedy by clicking "Report Side.
Others appear after taking a medicine for a long time or even after stopping a medicine. Many side effects are mild, but some can be serious and even life-threatening. All medicines can cause side effects. Some may not yet be known so that's why it's important for people to report to the Yellow Card Scheme.
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If a new side effect is found, the MHRA will review the way that the medicine can be used, and the warnings that are given to people taking it to minimise risk and maximise benefit to the patient. Further information can be found under our FAQ section. It is important for people to report as these are used to identify side effects and other problems which might not have been known about before.
The Yellow Card Scheme, run by the MHRA and the Commission on Human Medicines, is used to collect information from both health professionals and the general public on suspected side effects.
You can report suspected side effects (also known as adverse drug reactions) to a medicine, vaccine, herbal or complementary remedy by clicking "Report Side Effect" below.
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If you have already registered with this site, please login.
If you would like to report an adverse incident involving a medical device, an adverse blood reaction/event or a suspected counterfeit product, see reporting other problems.
If you are worried about a symptom you think may be a side effect:. Please note we cannot provide medical advice.
The information we receive will help us to improve the website further. We have recently updated our website and would appreciate your feedback.
Register. You can register on the Yellow Card reporting site when you submit a report, or you can register in advance.