Efficacy and safety of Yangxue Qingnao Granules in treatment of migraine: A systematic review and meta-analysis.

Background: Yangxue Qingnao Granules (YXQN) is a Chinese patent medicine that has been commonly used in the clinical treatment of migraine.

Aim: To assess the efficacy and safety of YXQN alone for the treatment of migraine.

Methods: We searched 10 databases to identify relevant randomized controlled trials (RCTs) published before September 2022.