A label enables a user to recognize information necessary when using a medicine bag in a reliable fashion. The label includes a base part indicating thereon basic information including at least information on ingredients of medicines accommodated in a medicine bag and a detachable part detachably joined to the base part. The detachable part is so shaped as to be attachable to such an area of the medicine bag that it becomes difficult to use the medicine bag when a surface of the area is covered, and the detachable part indicates thereon characteristic information including at least directions on use of the medicine bag.