Sentence: The positive inotropism of DPDPE was abrogated in animals pretreated with propranolol , CGRP(8 - 37 ) , or combined propranolol+CGRP(8 - 37 ) .
Drug combination annotation:
[{'class': 'COMB', 'spans': ['DPDPE', 'propranolol'], 'is_context_needed': True}, {'class': 'COMB', 'spans': [0, 2], 'is_context_needed': True}, {'class': 'COMB', 'spans': [0, 1, 2], 'is_context_needed': True}]