"Reportedly, cat's claw has also been used as a contraceptive by several different tribes of Peru (but only in very large dosages). Dr. Fernando Cabieses, M.D., a noted authority on Peruvian medicinal plants, explains that the Asháninka boil 5 to 6 kg (about
12 pounds) of the root in water until it is reduced to little more than 1 cup. This decoction is then taken 1 cup daily during the period of menstruation for three consecutive months; this supposedly causes sterility for three to four years."
Note that it says they would boil down
12 lbs in water until it's reduced to 1 cup. Anyone taking that large of amount isn't treating Lyme disease!
www.rain-tree.com/catclaw.htm#.V3W0RNeXsRY