You should call poison control, but 1mg is not much, especially if she only licked it. Lorazepam doesn't have much coating on it but pills do have to break down before they start working. From my experience in taking lorazepam, if they cat tasted it, it would probably not want to continue licking or eating it. (Even got a pill stuck on your tongue that won't go down and you get that pill taste?) I also had a friend who's puppy gobbled down a few of hers immediately after she dropped them (she was doing something stupid and opened her pill bottle while standing directly over his food bowl and he was eating soft food) She called the vet and was told to just watch him for a few hours and if he got too lethargic to take him to the animal ER. He was about the size of a medium cat at the time.