Sentence: A non-specific inhibitor of 5-HT reuptake , imipramine , did not produce this amnesic effect , nor did the combination of fenfluramine with the MAOI tranylcypromine , although it produced , as expected , the " serotonergic syndrome . " Results for the metabolic precursor of 5-HT , 5-HTP , also administered peripherally , were inconsistent , with amnesic effects seen at 5 and 20 mg/kg but none at 10 mg/kg .
Drug combination annotation:
[{'class': 'NEG', 'spans': ['fenfluramine', 'tranylcypromine'], 'is_context_needed': False}]