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A 70-year-old man was admitted to our hospital because of dyspnea after taking an antihistaminic agent (homochlorcyclizine hydrochloride) for itching.
 A 70-year-old man: Subject; 70-year-old: Subject.Age; man: Subject.Gender; dyspnea: Effect; an antihistaminic agent (homochlorcyclizine hydrochloride): Treatment; itching: Treatment.Disorder; homochlorcyclizine hydrochloride: Treatment.Drug
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: adverse event 
  Option: Treatment.Freq, Subject.Population, Combination.Drug, Subject.Gender, Treatment.Duration, Subject, Effect, Treatment, Treatment.Disorder, Subject.Disorder, Treatment.Route, Subject.Race, Treatment.Time_elapsed, Treatment.Dosage, Subject.Age, Treatment.Drug 
Text: {0} 
Answer:
 A 70-year-old man: Subject; 70-year-old: Subject.Age; man: Subject.Gender; dyspnea: Effect; an antihistaminic agent (homochlorcyclizine hydrochloride): Treatment; itching: Treatment.Disorder; homochlorcyclizine hydrochloride: Treatment.Drug