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Pharmacokinetics of methadone in human-immunodeficiency-virus-infected patients receiving nevirapine once daily.
 human-immunodeficiency-virus-infected patients: Subject; methadone: Treatment; nevirapine once daily: Treatment; human-immunodeficiency-virus: Treatment.Disorder; once daily: Treatment.Freq; nevirapine: Treatment.Drug; methadone: Treatment.Drug; nevirapine: Combination.Drug; methadone: Combination.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:
 human-immunodeficiency-virus-infected patients: Subject; methadone: Treatment; nevirapine once daily: Treatment; human-immunodeficiency-virus: Treatment.Disorder; once daily: Treatment.Freq; nevirapine: Treatment.Drug; methadone: Treatment.Drug; nevirapine: Combination.Drug; methadone: Combination.Drug