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In the presented case fluvoxamine-induced akathisia in an OCD patient was partially resistant to the anticholinergic agent biperiden, and was successfully treated with the 5-HT2A/5-HT2C antagonist mianserin.
 fluvoxamine-induced akathisia in an OCD patient: Subject; 5-HT2A/5-HT2C antagonist mianserin: Treatment; akathisia: Treatment.Disorder; OCD: Treatment.Disorder; mianserin: 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: potential therapeutic event 
  Option: Treatment.Freq, Subject.Population, Combination.Drug, Subject.Gender, Treatment.Duration, Subject, Effect, Treatment, Treatment.Disorder, Treatment.Time_elapsed, Subject.Disorder, Subject.Race, Treatment.Route, Treatment.Dosage, Subject.Age, Treatment.Drug 
Text: {0} 
Answer:
 fluvoxamine-induced akathisia in an OCD patient: Subject; 5-HT2A/5-HT2C antagonist mianserin: Treatment; akathisia: Treatment.Disorder; OCD: Treatment.Disorder; mianserin: Treatment.Drug