It means that the patient was forced to take the medicine even though it tasted bad.
This is just from me guessing what one of the answers could be. If there is not an answer by these exact words then try to find one that has a similar meaning to the one I wrote. Likely that one will be the correct answer. However if this is not correct plz tell me and I'll edit my answer to the one you might want.
Hope this helps and plz say thanks on my pf because tomorrow is my birthday.
-Northstar