Available in white crystalline or powder form, magnesium sulphate is basically an inorganic salt and an electrolyte. This hygroscopic chemical is used as one of the main ingredients of antacid. As a pharmaceutical chemical, it is also used to formulate medication used for treating constipation for its laxative property. It is also used to formulate medicines for bronchial asthma. This pharmaceutical chemical has antispasmodic attribute. It is a wonderful remedy of preterm labor pain. As a suitable additive, it is combined with specific pharmaceutical composition for surgical procedures. This chemical is a reliable source of sulphate and magnesium ions.