Originally Posted by NeuroLogic

Hi Tommy,

A lot of drugs deplete magnesium, and magnesium deficiency can cause muscle twitches, spasms, as well as anxiety and depression. Furthermore, taking Ca supplements but no Mg, too, can also deplete Mg. I'd be very surprised if your Mg isn't low.

Carolyn Dean has a great book on Mg which I am still rereading.