Emoxipine is an antidepressant agent.The influence of emoxipine (2-ethyl-6-methyl-3-hydroxypyridine hydrochloride) and mexidol (2-ethyl-6-methyl-3-hydroxypyridine succinate) on the content of lipid peroxidation products in peripheral blood and the dynamics of clinical symptoms of gastrointestinal tract pathology has been studied in patients of middle and senile age with atherosclerosis in the abdominal aorta.

Indecainide (Ricainid) is a novel antiarrhythmic compound that is carcinogenic and can be used to study chronic stable ventricular arrhythmias secondary to coronary artery disease or cardiomyopathy.

Mitoquidone, a novel pentacyclic pyrroloquinone, is a potential anticancer agent. Mitoquidone showed good activity in a range of experimental solid tumour models and did not exhibit significant cytotoxicity.