Pyrithyldione is an anticonvulsant medication used to treat epilepsy in adults and children. It works by decreasing the amount of certain chemicals in the brain that can cause seizures. Pyrithyldione is also used to treat trigeminal neuralgia (pain in certain parts of the face) and seizures that begin in one area of the brain and spread to other areas. Common side effects of Pyrithyldione include dizziness, drowsiness, unsteadiness, headaches, nausea, and vomiting.
Pyrithyldione is a psychoactive drug that was once used as a sedative or hypnotic medication. It was introduced in 1949 and marketed as being safer than barbiturates, another class of sedatives used at the time. However, pyrithyldione is no longer prescribed today due to the risk of a serious side effect called agranulocytosis, which is a severe decrease in the number of white blood cells.
Pyrithyldione belonged to a class of drugs called dihydropyridines. These act by affecting the GABA neurotransmitter system in the brain, which helps to regulate sleep and relaxation.