I queried a friend of mine who is a Senior Flight Surgeon. His response follows:
"water restriction is the usual treatment along with electrolyte replacement. It is called psychogenic polydipsia."
So, it appears that if we, or a companion, drink ourselves into oblivion with just water, then treatment is, 1. Stop drinking water for awhile. And, 2. Take some electrolytes. Salt works fine. Doesn't sound all that difficult to me.
"water restriction is the usual treatment along with electrolyte replacement. It is called psychogenic polydipsia."
So, it appears that if we, or a companion, drink ourselves into oblivion with just water, then treatment is, 1. Stop drinking water for awhile. And, 2. Take some electrolytes. Salt works fine. Doesn't sound all that difficult to me.