Objective and subjective assessment of ephedrine combinations in asthmatic outpatients

11 asthmatic outpatients were treated with placebo, ephedrine + theophylline + hydroxyzine, ephedrine + theophylline, and ephedrine + hydroxyzine, orally t.i.d. for 4 days each in random order. Both objective (PEF rates) and subjective (ranking list) assessments demonstrated the efficacy of the triple combination over placebo. The combination of two drugs proved objectively or subjectively somewhat less acceptable.