Sentence: Good , moderate and mild pain relief were noted in 19 ( 41 % ) , six ( 13 % ) and seven ( 15 % ) patients on lamotrigine and 13 ( 28 % ) , five ( 11 % ) and 15 ( 33 % ) patients on amitriptyline , respectively , by patient 's global assessment of efficacy and safety .
Drug combination annotation:
[{'class': 'NEG', 'spans': ['lamotrigine', 'amitriptyline'], 'is_context_needed': True}]