Vomiting calcium salts

Hypervitaminosis D apparently cannot arise from excessive exposure to sunlight but only occurs following inge.s-tion of large quantities of synthetic vitamin D for months The amount necessary has been estimated at 50,000 units or more in a person with normal parathyroid function. The mechanism may involve formation of excessive amounts of the vitamin D metabolite 25-OHD. Toxicity involves derangements of calcium metabolism, resulting in hypercalcemia and metastatic calcification of soft tissue. Most problems result from the hypercalcemia, which typically causes muscular weakness, anorexia, nausea, vomiting, and depression of the central nervous system (which can result in coma and death). In addition, deposition of calcium salts in the kidneys (nephrocalcinosis) and the tubules (nephrolithiasis)... 

A calcium chloride bolus test dose (10-20 mg/kg up to 1 to 3 g) is the preferred therapy for patients with serious toxicity. In adults, calcium chloride 10% can be diluted in 100 mL normal saline and infused over 5 minutes through a central venous line. If a positive cardiovascular response is achieved with this test dose, a continuous infusion of calcium chloride (20-50 mg/kg per hour) should be started. Calcium gluconate is less desirable to use because it contains less elemental calcium per milligram of final dosage form. Intravenous calcium salts can produce vomiting and tissue necrosis on extravasation." Atropine also may be considered for treatment of bradycardia, but it is seldom sufficient as a sole therapy. ... 

Salts Compounds formed by the union of acids and bases, by the action of alkalies upon metals, or by the direct union of elements. The term is often incorporated in the common name of salts used as pharmaceuticals bitter salts, epsom salt, or Seidlitz salt (magnesium sulfate), preparing salt (sodium stannate), Preston s salts (ammonium chloride), Rochelle salt or Seignette s salt (potassium and ammonium tartrate), salt of Mars (ferrous sulfate), salt of Saturn (lead acetate), salt of tartar (potassium carbonate), salt of tin (stannous chloride), salt of wisdom (mercury bichloride and ammonium chloride), sore-throat salt (fused potassium nitrate), vinegar salts (calcium acetate), and vomiting salt (zinc sulfate). The term is also applied to some acids, such as salt of lemon or sour salt (citric acid), salt of sorrel (oxalic acid), and spirit of salt (muriatic acid). ... 

Chelation therapy is usually the treatment of choice. Both CaNai-EDTA (calcium disodium salt of ethylenediaminetetraacetic acid) and British Antilewisite compound (BAL 2,3-dimercaptopropanol) are commonly used to remove lead from the body. Both are administered via intramuscular injection. BAL binds lead to sulfhydral groups and chelates metal from both inside and outside the cellular space. Lead removal through the bile and urine is increased within 30 min of administration. BAL is the common choice when there is known toxicity to the kidney, but it is contraindicated if there is liver failure or glucose-6-phosphate dehydrogenase deficiency. BAL treatment has produced a number of adverse reactions, including nausea, vomiting, tachycardia, and fever. 

Crystalline colourless solid. Found in many plants, particularly the leaves of the rhubarb plant and in the juice of wood sorrel. Salts of Sorrel, Salts of Lemon. Used as a bleach and ink stain remover. The concentrated solution is corrosive. Harmful if inhaled or absorbed through skin 15 g oral agonizing pain, nausea and vomiting with haematemesis. Lowers plasma calcium convulsions, tetany, tingling of mucous membranes. Renal damage tubular necrosis. Smallest lethal dose reported 3.8 g in a 16-year-old boy. 

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