<unk> (also known as<unk> solution) is a mixture of sodium chloride (salt) and water and has a number of uses in medicine. It is used to clean wounds, remove and store contact lenses, and help with dry eyes. By injection into a vein, it is used to treat dehydration, such as from gastroenteritis and diabetic ketoacidosis. Large amounts may result in fluid overload, swelling, acidosis, and high blood sodium. In those with long-standing low blood sodium, excessive use may result in osmotic demyelination syndrome.<unk> is in the crystalloid family of medications. It is most commonly used as a sterile 9 g of salt per litre (0.9%) solution, known as normal<unk>  Higher and lower concentrations may also occasionally be used.<unk> is acidic, with a pH of 5.5 (due mainly to dissolved carbon dioxide). The medical use of<unk> began around 1831. It is on the World Health Organization's List of Essential Medicines. In 2017, sodium was the 225th most commonly prescribed medication in the United States, with more than two million prescriptions.
Saline 
Gluten
Phosphine
Goitrogen
Choline
Fluoride
Bromide
Chorus