Medical<unk>  is used both externally (as Epsom salt) and internally. The main external use is the formulation as bath salts, especially for foot baths to soothe sore feet. Such baths have been claimed to also soothe and hasten recovery from muscle pain, soreness, or injury. Potential health effects of<unk>  are reflected in medical studies on the impact of<unk> nesium on resistant depression and as an analgesic for migraine and chronic pain.<unk>  has been studied in the treatment of asthma, preeclampsia and eclampsia.<unk>  is the usual component of the concentrated salt solution used in isolation tanks to increase its specific gravity to approximately 1.25–1.26. This high density allows an individual to float effortlessly on the surface of water in the closed tank, eliminating as many of the external senses as possible. In the UK, a medication containing<unk>  and phenol, called "drawing paste", is useful for small boils or localized infections and removing splinters. Internally,<unk>  may be administered by oral, respiratory, or intravenous routes. Internal uses include replacement therapy for<unk> nesium deficiency, treatment of acute and severe arrhythmias, as a bronchodilator in the treatment of asthma, preventing eclampsia, a tocolytic agent, and as an anticonvulsant. Agriculture In agriculture,<unk>  is used to increase<unk> nesium or sulfur content in soil. It is most commonly applied to potted plants, or to<unk> nesium-hungry crops such as potatoes, tomatoes, carrots, peppers, lemons, and roses. The advantage of<unk>  over other<unk> nesium soil amendments (such as dolomitic lime) is its high solubility, which also allows the option of foliar feeding. Solutions of<unk>  are also nearly pH neutral, compared with the slightly alkaline salts of<unk> nesium as found in limestone; therefore, the use of<unk>  as a<unk> nesium source for soil does not significantly change the soil pH. Contrary to the popular belief that<unk>  is able to control pests and slugs, helps seeds germination, produce more flowers, improve nutrient uptake, and is environmentally friendly, it does none of the purported claims except for correcting<unk> nesium deficiency in soils.<unk>  can even pollute water if used in excessive amounts.<unk>  was historically used as a treatment for lead poisoning prior to the development of chelation therapy, as it was hoped that any lead ingested would be precipitated out by the<unk>  and subsequently purged from the digestive system. This application saw particularly widespread use among veterinarians during the early-to-mid 20th century; Epsom salt was already available on many farms for agricultural use, and it was often prescribed in the treatment of farm animals that inadvertently ingested lead. Food preparation<unk>  is used as * Brewing salt in making beer. * coagulant for making tofu. * Salt substitute. Chemistry Anhydrous<unk>  is commonly used as a desiccant in organic synthesis owing to its affinity for water and compatibility with most organic compounds. During work-up, an organic phase is treated with anhydrous<unk> . The hydrated solid is then removed by filtration, decantation, or by distillation (if the boiling point is low enough). Other inorganic<unk>  salts such as sodium<unk>  and calcium<unk>  may be used in the same way. Construction<unk>  is used to prepare specific cements by the reaction between<unk> nesium oxide and<unk>  solution, which are of good binding ability and more resistance than Portland cement. This cement is mainly adopted in the production of lightweight insulation panels. Weakness in water resistance limits its usage.<unk> nesium (or sodium)<unk>  is also used for testing aggregates for soundness in accordance with ASTM C88 standard, when there are no service records of the material exposed to actual weathering conditions. The test is accomplished by repeated immersion in saturated solutions followed by oven drying to dehydrate the salt precipitated in permeable pore spaces. The internal expansive force, derived from the rehydration of the salt upon re-immersion, simulates the expansion of water on freezing.<unk>  is also used to test the resistance of concrete to external<unk>  attack (ESA). Aquaria<unk>  heptahydrate is also used to maintain the<unk> nesium concentration in marine aquaria which contain large amounts of stony corals, as it is slowly depleted in their calcification process. In a<unk> nesium-deficient marine aquarium, calcium and alkalinity concentrations are very difficult to control because not enough<unk> nesium is present to stabilize these ions in the saltwater and prevent their spontaneous precipitation into calcium carbonate.
Magnesium sulfate
Potassium bromide
Benzonatate
Heptobarbital
Calcium chloride
Amobarbital
Metkefamide
Mephenytoin