Wakefulness-Promoting AgentsYohimbineReceptors, Adrenergic, alpha-2Adrenergic alpha-AntagonistsAdrenergic alpha-2 Receptor AntagonistsReceptors, Adrenergic, alphaClonidinePrazosinAdrenergic alpha-AgonistsNorepinephrineIdazoxanalpha 1-AntitrypsinAdrenergic alpha-2 Receptor AgonistsAdrenergic AntagonistsDioxanesOxymetazolineReceptors, AdrenergicXylazineAdrenergic alpha-1 Receptor AntagonistsHypoxia-Inducible Factor 1, alpha SubunitReceptors, Adrenergic, alpha-1Phentolamine