C CARDIOVASCULAR SYSTEM C04 PERIPHERAL VASODILATORS C04A PERIPHERAL VASODILATORS C04AB Imidazoline derivatives C04AB02 Tolazoline [DG:DG00281] D00997 Tolazoline hydrochloride (JAN/USP) M MUSCULO-SKELETAL SYSTEM M02 TOPICAL PRODUCTS FOR JOINT AND MUSCULAR PAIN M02A TOPICAL PRODUCTS FOR JOINT AND MUSCULAR PAIN M02AX Other topical products for joint and muscular pain M02AX02 Tolazoline [DG:DG00281] D00997 Tolazoline hydrochloride (JAN/USP)