Yes: Bromfed (brompheniramine) is a med for asthma which has an antihistamine in it so it may may make him feel groggy as a side effect. Montelukast is an asthma drug which works in a different way As a leukatriene receptor antagonist. They don't have any drug interactions with each other. Just be more careful next time.
Answered 11/28/2017
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