Describe the pharmacology of magnesium sulphate.

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College Answer

This was a repeat question and very poorly answered for such a commonly used agent. A 
structured approach to describing any drugs pharmacology was often not used. 
Most answers were lacking depth and detail. The questions asked the pharmacology NOT 
physiology of magnesium sulphate. This was best answered with a standard template addressing:
Presentation, Uses, Main actions, Pharmacodynamics, Pharmacokinetics, Mode of Action, 
Toxicity, and any Special Points