noun. a category of chemically corresponding drugs previously utilized for daytime sedation or the controlling of insomnia but no longer in typical clinical utilization. Their mechanism of action and poisonous aspects are alike to the barbiturates.

PIPERIDINEDIONES: "Sharon said her insomnia no longer exists since she has began taking Piperidineione drugs."
Cite this page: N., Pam M.S., "PIPERIDINEDIONES," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/piperidinediones/ (accessed October 15, 2021).