Hey that Wiki thing says it can be used for humans - I didn't imagine it! I chewed a leaf of it - tasted slightly bitter.
Robyn

Humans
Catnip has a history of human medicinal use for its soothing properties. It has also been known to have a slightly numbing effect. The plant has been consumed as a tea, juice, tincture, infusion or poultice, and has also been smoked.