This is one of the most interesting forms of Magnesium. It is one of the only salts wherein the other compound (taurine) has its own significant benefits. It also seems to be harder to obtain, and somewhat less popular than other forms.
I'd like to collect information and experiences, so if you've taken it, please let us know your thoughts!
Some papers concerning cardioprotective properties, and migraine treatment:
Complementary vascular-protective actions of magnesium and taurine: a rationale for magnesium taurate.
By a variety of mechanisms, magnesium functions both intracellularly and extracellularly to minimize the cytoplasmic free calcium level, [Ca2+]i. This may be the chief reason why correction of magnesium deficiency, or induction of hypermagnesemia by parenteral infusion, exerts antihypertensive, anti-atherosclerotic, anti-arrhythmic and antithrombotic effects. Although the amino acid taurine can increase systolic calcium transients in cardiac cells (and thus has positive inotropic activity), it has other actions which tend to reduce [Ca2+]i. Indeed, in animal or clinical studies, taurine lowers elevated blood pressure, retards cholesterol-induced atherogenesis, prevents arrhythmias and stabilizes platelets--effects parallel to those of magnesium. The complex magnesium taurate may thus have considerable potential as a vascular-protective nutritional supplement, and might also be administered parenterally, as an alternative to magnesium sulfate, in the treatment of acute myocardial infarction as well as of pre-eclampsia. The effects of magnesium taurate in diabetes deserve particular attention, since both magnesium and taurine may improve insulin sensitivity, and also may lessen risk for the micro- and macrovascular complications of diabetes.
Magnesium taurate for the prevention and treatment of pre-eclampsia/eclampsia.
The use of parenteral magnesium sulfate for the management of pre-eclampsia/eclampsia is well established. In striking analogy to the effects of hypermagnesemia, taurine has antivasospastic, antihypertensive, platelet-stabilizing, anticonvulsant and hypoxia-protective properties. Thus parenteral magnesium taurate can reasonably be proposed as a superior alternative to magnesium sulfate in the treatment of pre-eclampsia; administered orally as a component of prenatal supplementation, magnesium taurate might well have both preventive and therapeutic value in this syndrome. In the light of the hypoxia-protective actions of both magnesium and taurine, such supplementation might also protect fetuses experiencing temporary perinatal asphyxia, lessening the risk of cerebral palsy.
It's also mentioned here as effective in treatment for depression: Rapid recovery from major depression using magnesium treatment.
Magnesium taurate and fish oil for prevention of migraine.
Although the pathogenesis of migraine is still poorly understood, various clinical investigations, as well as consideration of the characteristic activities of the wide range of drugs known to reduce migraine incidence, suggest that such phenomena as neuronal hyperexcitation, cortical spreading depression, vasospasm, platelet activation and sympathetic hyperactivity often play a part in this syndrome. Increased tissue levels of taurine, as well as increased extracellular magnesium, could be expected to dampen neuronal hyperexcitation, counteract vasospasm, increase tolerance to focal hypoxia and stabilize platelets; taurine may also lessen sympathetic outflow. Thus it is reasonable to speculate that supplemental magnesium taurate will have preventive value in the treatment of migraine. Fish oil, owing to its platelet-stabilizing and antivasospastic actions, may also be useful in this regard, as suggested by a few clinical reports. Although many drugs have value for migraine prophylaxis, the two nutritional measures suggested here may have particular merit owing to the versatility of their actions, their safety and lack of side-effects and their long-term favorable impact on vascular health.