The finest catnip that will wangle your miskers. ItÕs derived from the trimmings of our catnip buds, then hand processed to get the cleanest shake on the shelf. No sticks, no seeds, just some light green kitty weed!. Large bottle contains: Approximately 36 servings per bottle - 18 grams of catnip. Catnip can be given every other day to cats, but after a few minutes, its effectiveness wears off and your cat will need to be away from the catnip for a while in order to experience a reaction again. Catnip may not be well received by cats under a year old.