Fig 5. Effect of nightly oral dose of 50 mg DHEA on androgen levels (testosterone, dihydrotestosterone, and androstenedione in men and women), compared with placebo. Note the significant increases in androgen levels in women and the lack of effect on these levels in men.
Catnip, in large enough quantities, will also work as an attractant for large cats like lions and tigers. Europeans in the 1400s regularly drank teas made from catnip, with the herb earning a medicinal application for treatment of colic and flatulence.
1 About 50 percent of cats seem to be affected by catnip, and the behavior that results varies widely between individuals. 2  Cats may rub against and chew on catnip to bruise the leaves and stems, which then release more nepetalactone. 3  Catnip is safe for cats.