noun. an anticonvulsant barbiturate utilized for remediation of generalized partial or tonic-colonic seizures. Once widely utilized as a hypnotic and sedative, it has been greatly substituted for these reasons by safer drugs that possess lessen chances of poisoning and negative impacts correlated with barbiturates. Additionally, Phenobarbital is utilized at times for the control of anxiolytic, hypnotic, or sedative withdrawal. American brand name: Luminal,
PHENOBARBITAL: "Jenna's seizures do not occur nearly as often since she has been taking the Phenobarbital."