Unlike other racetams , nefiracetam shows high affinity for the GABAA receptor ( IC50 ) = 8.5 nM ) , where it is presumed to be an agonist .
ADP ADJ NOUN , NOUN VERB ADJ NOUN ADP DET PROPN NOUN ( PROPN ) SYM NUM NOUN ) , ADV PRON AUX VERB PART VERB DET NOUN .