<unk>  is a mineral supplement and medication. As a medication it is used by injection into a vein to treat low blood<unk> , high blood potassium, and magnesium toxicity. Supplementation is generally only required when there is not enough<unk>  in the diet. Supplementation may be done to treat or prevent osteoporosis or rickets. It can also be taken by mouth but is not recommended for injection into a muscle. Side effects when injected include slow heart rate, pain at the site of injection, and low blood pressure. When taken by mouth side effects may include constipation and nausea. Blood<unk>  levels should be measured when used and extra care should be taken in those with a history of kidney stones. At normal doses, use is regarded as safe in pregnancy and breastfeeding.<unk>  is made by mixing gluconic acid with<unk>  carbonate or<unk>  hydroxide.<unk>  came into medical use in the 1920s. It is on the World Health Organization's List of Essential Medicines.<unk>  is available as a generic medication.
Calcium gluconate
Sodium bicarbonate
Calcium chloride
Potassium chloride
Potassium chloride 
Magnesium sulfate
Magnesium sulfate 
Glucagon