I just got this email from a good friend. The Honey she refers to is her new kitty; now about 4 months old.
Apparently, per our good vet, catnip should never be given to kittens, and to some adult cats. They can have an allergic reaction that causes a chemical imbalance in their brains and they literally go wild (not in a good way) until it wears off hours later. We’re talking serious mean biting & scratching, attacking anyone (2 or 4 legged). We found that out when we first got Honey and Mom had put down a sock with catnip in it for both cats to play with. About an hour after Honey had been exposed, she turned vicious and we had no idea what had gotten into her. Mom talked to the vet and that’s when we learned about that. That allergic reaction makes some cats and a lot of kittens especially literally crazy and not in a good way. Grown cats, different story – some can do kitty drugs, some can’t.