Ketamine - Kidney damage

What kind of damage does ketamine do to the kidneys? And would something like this help repair any damage that has been done if any has been?

http://www.organichealthandbeauty.com/Kidney-Bladder-Cleanse_p_139.html

Lists one use as:

Allows kidneys and bladder to regenerate and heal.

Is this just a scam or would it help?

Thanks

I'm going to move this over to Health Living, I don't know what their mods will do with it, but I feel you'll get a better set of answers in regards to your questions about the supplement you linked to.

B D D - - > H L