CBBC
CBBC Newsround
Tamiflu
Thousands of people across the UK have been taking medicine called Tamiflu to help treat the symptoms of swine flu.
But, like lots of medicines, it can have side effects for some people who take it and make them feel even worse.
A recent study found that loads of children have suffered sickness, been unable to sleep or even had nightmares after taking Tamiflu.
So are you one of them? Have you taken Tamiflu? Did it make you feel better or worse?
If you've suffered any side effects that you think may have been caused by taking Tamiflu, we'd like to talk to you about your experiences.
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