A million-dollar wound or Blighty wound is military slang referring to a type of wound received in combat which is serious enough to get the person sent away from the fighting, but is not fatal, nor will it leave the person permanently crippled.
In conclusion, Benadryl does not cause kidney damage directly, but if you uses excessively over a long period of time and there is urinary retention, the chronic urinary retention could ending producing kidney failure.
Prawns have green glands for excretion and vertebrates have kidneys as their excretory organ. The role of excretory organ is to remove unwanted wastes and regulate the water content in body and is known as Osmoregulation. Animals are classified on the basis of type of removal of nitrogenous waste.