<unk>  <unk>  is a salt, widely used as an anticonvulsant and a sedative in the late 19th and early 20th centuries, with over-the-counter use extending to 1975 in the US. Its action is due to the<unk>  ion (sodium<unk>  is equally effective).<unk>  is used as a veterinary drug, as an antiepileptic medication for dogs. Under standard conditions,<unk>  is a white crystalline powder. It is freely soluble in water; it is not soluble in acetonitrile. In a dilute aqueous solution,<unk>  tastes sweet, at higher concentrations it tastes bitter, and tastes salty when the concentration is even higher. These effects are mainly due to the properties of the<unk>  ion—sodium<unk>  tastes salty at any concentration. In high concentration,<unk>  strongly irritates the gastric mucous membrane, causing nausea and sometimes vomiting (a typical effect of all soluble<unk>  salts).
Potassium bromide
Calcium chloride
Magnesium sulfate 
Magnesium sulfate
Bolazine
Ethyl loflazepate
Tianeptine
Benzonatate