A bioelectrode sheet (100) is configured to be affixed to the skin of a subject, a drug (104b) being mixed in an adhesive layer (104) provided at a peripheral position of a conductive gel layer (103) so as to avoid the conductive gel layer (103). The drug (104b) admixed with the adhesive layer (104) can thereby be caused to penetrate the body while biological information is acquired by an electrode (102) via the conductive gel layer (103).
