Choose one that combines an older antihistamine (like brompheniramine
, diphenhydramine, or chlorpheniramine) with a decongestant.
It was succeeded by a number of similar agents, including chlorpheniramine, brompheniramine
, diphenhydramine, promethazine, and hydroxyzine.
She medicated herself with diphenhydramine and brompheniramine
and noted improvement in her symptoms the following day (day 3).
The poison control center suggests they check Christopher's blood pressure, because Dimetapp Extentabs contain 75 mg of phenylpropanolamine, a decongestant that in large quantities can raise blood pressure, and 12 mg of brompheniramine
, an antihistamine.
Other drugs that can cause false-positive results for some opiate immunoassays include dextromethorphan, diphenhydramine, ephedrine/pseudoephedrine, doxylamine, chlorpheniramine, brompheniramine
, quinolone antibiotics, and rifampin.
FDA classification of selected antihistamines Category Drug B Azatadine Cetirizine Chlorpheniramine Clemastine Dimenhydrinate Diphenhydramine Loratadine C Azelastine Brompheniramine
Fexofenadine Hydroxyzine Promethazine Table 4.
In 2007 and 2008, the Food and Drug Administration (FDA) warned parents of children's OTC medications containing any of the eight specific, active ingredients of concern, including phenylephrine, diphenhydramine, pseudoephedrine, clorpheniramine, brompheniramine
, dextromethorphan, guaifensisin, doxylamine.