<human>: My cat was spayed 2 days ago.  Unfortunately it wasn't a routine spay, when they opened her up, her womb was much larger than it normally should be and surrounded by fluid - so her surgery was more traumatic than usual.

Since her surgery she hasn't eaten or drank, so today I took her to the vet and she gave her a stronger antibiotic and some diazepam to help with her appetite.  Whilst this seems to have had the intended effect of making her eat something, she has also been rubbing her incision site on things, licking her stitches (both of which she didn't do beforehand) and also eating her kitty litter....

When I tried to move her away from her litter, she hissed, growled and spat at me, which is completely unusual behaviour for her.  I have since removed her litter box from the room, but my main concern is her interfering with her stitches.

Give me the gist of the text in a nutshell
<bot>: Does anyone have any experience of their cat on diazepam?  How long (roughly) does it take to wear off them?  Googling didn't seem to bring up much useful info..