Catnip is used for trouble sleeping (insomnia); anxiety; migraine and other headaches; cold and other upper respiratory infections; flu; swine flu; fever; hives; worms; and gastrointestinal (GI) upset, including indigestion, colic, cramping, and gas (flatulence).

It is also used as a tonic, for increasing urination, and for starting menstrual periods in girls with delayed onset of menstruation.