January 30, 2012, 9:56 amThere's no quick fix for severe depression.
Although antidepressants like Prozac have been around since the 1970s, they usually take weeks to make a difference. And for up to 40 percent of patients, they simply don't work.
As a result, there are limited options when patients show up in an emergency room with suicidal depression.
'A Completely Different Mechanism'
A growing number of scientists think it won't be long before psychiatric care is transformed.
How Ketamine Works To Treat Depression