Lack of cross-reaction between promethazine and ethylenediamine.
D003429:Cross Reactions; D003877:Dermatitis, Contact / Q000209:etiology*; D005029:Ethylenediamines / Q000009:adverse effects*; D006801:Humans; D011398:Promethazine / Q000009:adverse effects*
D005029:Ethylenediamines; D011398:Promethazine