Sentence: Active treatment consisted of hydrochlorothiazide ( 25 - 50 mg/day ) plus triamterene ( 50 - 100 mg/day ) with the addition of alpha-methyldopa ( 0.5 - 2.0 g/day ) in one-third of the patients .
Drug combination annotation:
[{'class': 'POS', 'spans': ['hydrochlorothiazide', 'triamterene', 'alpha-methyldopa'], 'is_context_needed': True}]