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| Trade names | Benedorm, Didropyridine, Dihydroprylone, Persedon, Presidon, Pyridion, Pyridione, Pyrithyldion, Pyrithyldione, Tetridin, Tetridine |
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| ECHA InfoCard | 100.000.910 |
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| Formula | C9H13NO2 |
| Molar mass | 167.208 g·mol−1 |
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Pyrithyldione[1] (Presidon, Persedon) is apsychoactive drug invented in 1949.[2]An improved method of manufacture was patented by Roche in 1959.[3] It was used as ahypnotic orsedative and presumed to be less toxic thanbarbiturates.[4] Today, this substance is no longer used.Agranulocytosis was sometimes reported asadverse effect.[5][6] Pyrithyldione is also a CYP2D6 inducer but is not as potent as glutethimide.[7] In studies, it increased the O-demethylation of codeine by 20%.
