Tiger penis soup is an example of a food tonic that has been the source of much misinformation about medicinal use of tiger parts. This concoction, purported to enhance sexual performance, is not based on any known therapeutic formula found in the classical TCM texts or approved pharmacopeia, and is not a treatment that licensed TCM doctors are trained to prescribe. You can see how this could lead to confusion. It's all in the capital letters. And the AMA will be angry if you say it is.
Tigers are in trouble without being used for aphrodisiacs.
Some of it started in the 1950s when Mao Zedong issued a call to Kill All Tigers on the grounds that they attacked livestock. So many were killed that stockpiles of tiger parts built up, which ran out in the late 1980s and 1990s. Demand remained high and poaching and smuggling soared. In 1993, China banned trade in rhino and tiger parts, and medicines made from either were removed from the official pharmacopeia. The reduction has been tremendous.