a recent article on camels mentioned how they are able to concentrate their urine to reduce water loss, but this would seem like it would cause kidney stones. It might be worth studying camel urine to see if it has chemicals to dissolve or prevent kidney stones that might be useful in human patients.
https://www.sciencealert.com/fat-s-the-secret-ingredient-behind-a-camel-s-ability-to-survive-weeks-without-drinking