We equally randomized 78 patients with idiopathic oligoasthenozoospermia to a control group and a Yiqi Zhujing group , the former treated with oral medication of zinc gluconate liquid ( 10 ml , bid ) and vitamin E ( 100 mg , bid ) , and the latter given Yiqi Zhujing Granule ( 1 packet , bid ) in addition , both for 3 months .