Originally Posted by mrsD

There are studies showing magnesium OXIDE remains in the bowel, and never gets into the blood stream. It is now used in laxative products because of this information. (Phillips tablets)

SlowMag was designed to replace it and was detailed to doctors, but I guess the message never got thru.

Yes you should replace it. Oxide will do nothing for twitching or other magnesium tasks.

SlowMag or any chelated product will do. (citrate, gluconate, carbonate, malate, taurate).
You can also apply a wonderful lotion version...Morton Epsom lotion --a little goes a long way. Or soak frequently in a tub with epsom salts. I think the lotion is the better solution topically.

This is my magnesium thread.... with all you will ever want to know about the subject:
http://neurotalk.psychcentral.com/thread1138.html