Magnesium is a powerful anti-arrhythmic drug . It has a well established role in controlling VT when administered Intravenously especially in polymorphic VT .
Mechanism of action
- It acts at the cell membrane.
- It has a unique action of blocking calcium channels that reduces the number of oscillations of both early and late after potentials
Link for more on mechanism of action
How often cardiologists administer oral magnesium for long-term control of VT ?
As for as I know , no one uses it ! but dietary supplements are used for general well being .
Why ? Is it because
- Magnesium does not get absorbed in the gut
- Magnesium levels are un- predictable in plasma if administered orally
Answer : No one has really tried it as a chronic therapy in VT yet !
Tablet Magnesium can give a tough fight to Amiodarone and Flecanaide in refractory VT at a fraction of the cost !
Who has the audacity to compare Magnesium with Amiodarone head on ?
Magnesium is available in tablet form as Malate , Stearate, Taurate and Aspartate along with calcium and Zinc etc .