[Effect of apressin, obsidan, diprazine and their combination on the concentration of NAD and NADH2 in the liver and brain of hypoxic rats].

Apressin (2.5 mg/kg), obsidan (10 mg/kg), and diprazine (10mg/kg) caused an increase in the content of NAD + NAD.H2, without affecting their ratio, in the liver and brain of intact animals. These drugs, taken in the same doses, especially when used together, caused an increase in the NAD + NAD.H2 level; as to NAD/NAD.H2 ratio--it decreased in the state of hypoxia. The authors believe the antihypoxic action of apressin, obsidan, and diprazine to be connected with the rise in the total nicotinamide adenine denucleotide content and with increase of its oxidized form.