In patients using the hypoglycemic agents of the biguanide group (metformin), due to a violation of absorption of cyanocobalamin from the gastrointestinal tract, a decrease in the concentration of cyanocobalamin in the blood can be observed. With other hypoglycemic agents, drug interactions are not described.
Cyanocobalamin is incompatible with ascorbic acid, heavy metal salts, thiamine, thiamine bromide, pyridoxine, riboflavin, folic acid.
Can not be used simultaneously cyanocobalamin with drugs that increase blood coagulability.
In addition, simultaneous use of cyanocobalamin with chloramphenicol should be avoided.
Aminoglycosides, salicylates, antiepileptic drugs, colchicine, potassium preparations reduce the absorption of cyanocobalamin.
When combined use of drugs containing trifosadenine, with dipyridamole, the action of dipyridamole is enhanced, in particular the vasodilating effect.
Dipyridamole enhances the effect of trifosadenin.
There is some antagonism in the joint use of the drug with purine derivatives (caffeine, theophylline).
Do not administer simultaneously with cardiac glycosides in large doses, as the risk of developing adverse reactions from the cardiovascular system increases.
With simultaneous application of xanthinal nicotinate, the effect of the drug is reduced.
Nicotinamide potentiates the action of sedatives, tranquilizers, as well as antihypertensive drugs.