Weird Universe introduces us to the works of John G. Bourke, an American professional soldier during and after the Civil War. He was a prolific writer throughout his career and took detailed notes about his observations of the Native American peoples that he encountered in the United States' wars against them.
In 1891, he compiled his own observations and those of other writers into his most famous work, Scatalogical Rites of All Nations: A Dissertation upon the Employment of Excrementicious Remedial Agents in Religion, Therapeutics, Divination, Witch-Craft, Love-Philters, etc. in All Parts of the Globe.
It's a book about how different cultures view, make use of, or separate themselves from urine and feces to remain physical and/or ritualistically clean. You can read it online here.
While in the US Army, Bourke was able to observe a lengthy Zuni ritualistic dance that included the drinking of urine.
Men of a certain age may appreciate helpful tips that Bourke accumulated through sources that reflect folklore across the world. There is no indication that the various medicinal uses of excretory materials were subjected to empirical testing, but that is certainly an option for modern scientists.