Paracetamol decreases the effectiveness of diuretics.
The simultaneous use of chlorpheniramine with MAO inhibitors, furazolidone can lead to nervous excitation, increased body temperature, a sharp increase in blood pressure right up to the hypertensive crisis.
The drug enhances the effects of ethanol, sedatives.
Application simultaneously with halothane increases the risk of ventricular arrhythmia.
Phenylephrine when used with guanethidine reduces its hypotensive effect.
Hepatotoxic effect of paracetamol increases with simultaneous use with barbiturates, rifampicin, diphenin, carbamazepine and other inducers of microsomal liver enzymes.
The risk of developing glaucoma increases with the use of the drug simultaneously with glucocorticosteroids.
Tricyclic antidepressants enhance the adrenomimetic effect of phenylephrine, guanethidine is the alpha-adrenostimulating effect of phenylephrine.