Administered medicine to (5)
I believe the answer is:
dosed
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">administered medicine to</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for dosed that I've seen before include "Administered a portion of medicine to" , "Treated with medicine" , "Gave medicine to" , "Given shot" , "Administered a drug to" .)