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trimethadione/tri·meth·a·di·one/ (tri″meth-ah-di´ōn) an anticonvulsant with analgesic properties, used for the control of petit mal seizures.
A white crystalline substance, C6H9NO3, used as an anticonvulsant in the treatment of epilepsy.
indications It is prescribed to prevent absence (petit mal) seizures, particularly seizures that are resistant to other therapies.
contraindications Severe renal or hepatic impairment, blood dyscrasias, or known hypersensitivity to this drug prohibits its use.
adverse effects Among the more serious adverse effects are exfoliative dermatitis, blood dyscrasias, and aplastic anemia. Sedation, diplopia, photophobia and hemeralopia (an inability to see as distinctly in bright light as in dim light) may occur.