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Risks and benefits of co-treatment should be carefully considered and therapeutic alternatives to NSAIDs should be recommended to patients with central DI in order to improve DDAVP safety.
 patients with central DI: Subject; in order to improve DDAVP safety: Effect; therapeutic alternatives to NSAIDs: Treatment; central DI: Treatment.Disorder; NSAIDs: 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:
 patients with central DI: Subject; in order to improve DDAVP safety: Effect; therapeutic alternatives to NSAIDs: Treatment; central DI: Treatment.Disorder; NSAIDs: Treatment.Drug