Bucromarone is a coronary vasodilator. It is a compound exhibiting a structural relationship with amiodarone, a widely used antiangorous and antiarrythmic drug. Bucromarone appeared promising in the treatment of cardiac arrhythmia. Bucromarone is rapidly concentrated in the tissues after intravenous administration, and mainly eliminated in the bile. Bucromarone is well absorbed through the gastrointestinal tract after per os administration, but after liver uptake through the portal vein and extensive metabolism, unchanged drug and its metabolites are mainly excreted in the bile. As compared with amiodarone, bucromarone seems more rapidly distributed in the tissues and eliminated from the organs and blood.