Sentence: Canine leishmaniosis is most frequently treated with the drugs meglumine antimoniate , allopurinol , amphotericin B , or a combination of meglumine antimoniate and allopurinol .
Drug combination annotation:
[{'class': 'POS', 'spans': ['meglumine', 'allopurinol'], 'is_context_needed': False}, {'class': 'POS', 'spans': [1, 2, 5], 'is_context_needed': False}]