my son has always taken magnesium and taurine together but as separate supplements. seems to work for his TS tics as well as, if not better than, the more expensive mag taurate combos

Bontech makes a combo (http://www.bonniegr.com/ts-PLUS%20Mag%20Taurate.htm) as does Cardiovascular Research (available at vitaminshoppe.com and in their stores)