Catnip was used for diarrhea, gas, and stomach cramps. It's said to relieve muscle spasms in the intestinal tract. Drinking catnip tea may soothe the digestive system. Many groups of people have traditionally used catnip tea to relieve infants' colic and help babies to sleep at night. Catnip has multiple magical attributes. It's used in healing spells, enhances sleep, tranquility and dreams, tunes in your psychic ability.