Read the paragraph below and choose the alternative that fills in correctly and resp...

Read the paragraph below and choose the alternative that fills in correctly and respectively the blanks below.

"Ketamine, ________ is also a drug used recreationally to achieve a sort ______ "out of body" high, "is not ______ all ready for prime time", said Dr. James Murrough, an associate professor of psychiatry at Icahn School of Medicine at Mt. Sinai. But it is approved ______ use in anesthesia, so it?s available legally. And years of small and preliminary trials have offered tantalizing evidence of its powerful and fast–acting antidepressant effect ______ patients whose depression has failed to yield to other treatments."

Ketamine: a potential rescue drug for depression takes a step forward. Available in: http://www.latimes.com