The influence of dimetindene maleate on the endogenous hydrocortisone synthesis suppressing potency of betamethasone.

Plasma hydrocortisone (cortisol) levels in 7 healthy volunteers were measured following administration of 0.25 mg betamethasone or 0.25 mg betamethasone and 1 mg dimetindene maleate. The H1-receptor antagonist dimetindene maleate did not influence the hydrocortisone suppressing activity of betamethasone, which was proved by comparison with the published plasma hydrocortisone levels of 162 young healthy untreated volunteers.