richms:
My GP also explained to me about side effects that they basically list it if it happened to 1 person on the trial even if they did not know how it happened, since they cant prove that it was not the drugs under trial, which is why there are so many listed on things that never actually happen.
Not sure that's correct. I would expect they'd only need to list it as a side effect if the incidence of the apparent side effect was at a higher rate higher than that in the general population plus the likely margin of error for a small sample as in a trial.