Cat being sick after dewormer?
I gave my kitten (he's nearly one year old) a dewormer granule with his food two days ago. Today he was unwell and he vomited all his undigested food which has some hair in it too.
Could this be related to the dewormer? Or is it likely to be from the hair? Can hairballs cause a cat to throw up all the food in his tummy too?