Table 1.

Patients classified based on use of other drugs for insomnia

Classification	Condition
Naïve	Patients who received suvorexant without any history of use of drugs for insomnia (drugs used 50 days or longer before initiation of suvorexant are not considered as drugs used)
Switching	Patients who received suvorexant after discontinuation or dose reduction of existing drug(s) for insomnia within 14 days before initiation of suvorexant
Add-on	Patients who received suvorexant without changing the use of existing drug(s) for insomnia within 14 days before initiation of suvorexant
Others	Patients other than the above