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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.
 ( potential therapeutic event: treated ,  fluvoxamine-induced akathisia in an OCD patient: Subject, 5-HT2A/5-HT2C antagonist mianserin: Treatment, akathisia: Treatment.Disorder, OCD: Treatment.Disorder, mianserin: Treatment.Drug) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: adverse event,potential therapeutic event, Arguments type: Treatment.Disorder,Treatment.Time_elapsed,Treatment.Dosage,Subject.Race,Treatment.Drug,Treatment.Route,Subject.Disorder,Treatment.Freq,Treatment,Effect,Subject.Population,Treatment.Duration,Combination.Drug,Subject,Subject.Age,Subject.Gender. 
Text: {0} 
Answer:
 ( potential therapeutic event: treated ,  fluvoxamine-induced akathisia in an OCD patient: Subject, 5-HT2A/5-HT2C antagonist mianserin: Treatment, akathisia: Treatment.Disorder, OCD: Treatment.Disorder, mianserin: Treatment.Drug) 