Sentence: were randomized in an open-label , crossover fashion to treatment A ( dolasetron 100 mg on day 1 ) and treatment B ( dolasetron 100 mg plus aprepitant 125 mg on day 1 , aprepitant 80 mg on days 2 - 3 ) .
Drug combination annotation:
[{'class': 'POS', 'spans': ['dolasetron', 'aprepitant'], 'is_context_needed': True}]