Toxicology of a polymerized modification of isonicotinic acid hydrazide

: The biologic side effects were studied of a polymer of isonicotinic acid hydrazide (PINH) synthesized on the basis of the copolymer vinylpyrrolidone and crotonaldehyde. The influence of dosage and conditions of administration as a functional and morphologic indicator in animals were also investigated. Threshold dosage and optimal conditions of administration in clinical practice are recommended.