Sentence: Patients used 2.16 ( range 0.0 - 6.3 ) formoterol and 2.34 ( range 0.1 - 7.5 ) terbutaline relief inhalations x day(-1 ) .
Drug combination annotation:
[{'class': 'COMB', 'spans': ['formoterol', 'terbutaline'], 'is_context_needed': True}]