Table 2

Impact of ketamine on suicidal ideation (SI) in those patients who experienced benefit (n=12)

Onset of reduced SIn=12
Immediate/during treatment2
Within an hour of treatment5
A few hours after treatment2
A day or more after treatment3
Duration of reduced SI
0–24 hours2
Several days4 (3–6 days)
A week or more0
A month or more1