AnticonvulsantsAnalgesicsAnalgesics, OpioidReceptors, Opioid, muDexmedetomidineAnalgesics, Non-NarcoticAnalgesiaPainReceptors, OpioidPain MeasurementNaloxoneMorphinePentylenetetrazolePhenytoinSeizuresReceptors, Opioid, deltaHypnotics and SedativesPain ThresholdReceptors, Opioid, kappaHyperalgesiaCarbamazepineOpioid PeptidesDose-Response Relationship, DrugKetamineConvulsantsElectroshockRats, Sprague-DawleyPrimidoneEthosuximideEpilepsyPlant ExtractsNarcotic AntagonistsBehavior, AnimalValproic AcidCyclohexanecarboxylic AcidsSemicarbazonesClonazepamOpioid-Related DisordersDiazepamDrug ToleranceNaltrexonePhenobarbitalKindling, NeurologicPain, PostoperativeEnkephalinsTramadolNarcoticsAminesEnkephalin, Ala(2)-MePhe(4)-Gly(5)-BuprenorphineTriazinesEndorphinsDrug InteractionsEpilepsy, ReflexEnkephalin, D-Penicillamine (2,5)-FentanylEpilepsy, Tonic-ClonicPhenylenediaminesgamma-Aminobutyric AcidPregnanoloneTrimethadioneDynorphinsPhenacetinMeperidineAcetaminophenVigabatrinNipecotic AcidsHydromorphoneDisease Models, AnimalEnkephalin, LeucineMorphinansDipyroneDextropropoxyphenePhenylcarbamatesStatus EpilepticusPilocarpineCodeineAnti-Inflammatory Agents, Non-SteroidalReceptor, Galanin, Type 1Rats, WistarInjections, SpinalEnkephalin, Leucine-2-AlanineEpilepsy, Complex Partialbeta-EndorphinInjections, IntraperitonealAnesthetics, LocalOsteomalaciaBarbituratesPain ManagementPentazocineMethadoneSubstance Withdrawal SyndromePassifloraBenzodiazepinesPiracetamEpilepsy, GeneralizedBenzeneacetamidesPain, IntractableDouble-Blind MethodReceptors, GABA-A