Table 2. Classification of glucocorticosteroid substance classes with regard to possible cross-reactions when used locally or systemically, including model substance for testing. Modified from [21].

	A	B	C	D1	D2
Structure	Hydrocortisone	Triamcinolon acetonide	Betamethasone	Betamethasone diproprionate	Methylprednisolone aceponate
Test substance	Tixocortol	Budesonide	-	Clobetasol	Hydrocortisone-17-butyrate
Local	Hydrocortisone Hydrocortisone acetate Methylprednisolone Prednisolone Tixocortol	Amcinonide Fluocinolone Halcinonide Fluocinolone Triamcinolone acetonide/ diacetate	Dexamethasone	Clobetasol proprionate Betamethasone depropionate/valerate Fluticasone Mometasone Clobetasol	Hydrocortisone-17-butyrate Hydrocortisone valerate Hydrocortisone buteparate Hydrocortisone butyrate Prednicarbate
Oral	Cloprednol Methylprednisolone Prednisone Prednisolone	Budesonide Triamcinolone	Betamethasone Dexamethasone	Betamethasone	Hydrocortisone