Kalium muriaticum
Kali muriaticum is a 'Schussler-salt', one of the twelve tissue salts which Schussler used in his system (Clarke, 1985, part 2, page 141). No provings have been done with this. The symptoms in the repertory have been taken from clinical cases and from the pictures given by Schussler. The general picture is therefore not very reliable and more focused on pathology. An added complication is that the picture of Kalium muriaticum. has been confused with the picture of Kali chloratum, a related but at the same time quite different remedy.
Kali muriaticum is one of the remedies which initially surprised me. You would expect it to be one of the 'big' remedies in homeopathy. It is after all closely related to some other big ones, like Natrium muriaticum and Kalium carbonicum. So there is no reason why Kalium muriaticum. shouldn't also have a large area of application. This probably means that its picture is not sufficiently known yet, not familiar enough for us to use it. Unless it is that Kalium muriaticum really is rather a minor remedy, but in than case there must be an explanation why there should be such a difference between Nat-m and Kalium muriaticum.