单项选择题

下列哪项药物的用量不正确

A.甘遂入丸散,0.5~1g
B.巴豆入丸散,0.1~0.3g
C.牛黄入丸散,1~3g
D.龙骨入汤剂,15~30g
E.生石膏入汤剂,15~60g