Author's Organization:Faculty of Pharmaceutical Sciences, Kyushu University Department of Pharmacy, School of Medicine, University of Occupational and Environmental Health, Japan (Sangyo Ikadaigaku) Department of Pharmacy, School of Medicine, University of Occupational and Environmental Health, Japan (Sangyo Ikadaigaku) Faculty of Pharmaceutical Sciences, Kyushu University Faculty of Pharmaceutical Sciences, Kyushu University Faculty of Pharmaceutical Sciences, Kyushu University
Tetrazolo [5, 1-α] phthalazine (Tetra-P) was detected in the urine of a patient on hydralazine treatment. Tetra-P is a new type of monoamine oxidase (MAO) inhibitor.