In zebrafish, ketamine causes changes a brain circuit involved in "giving up." That may help explain how the drug helps people with depression.

A single dose of the anesthetic ketamine can provide weeks of relief from severe depression. One reason may be that the drug causes long-term changes to a brain circuit involved in "giving up," a ...

Elon Musk said in a March 2024 interview that he takes ketamine to treat depression. He claimed to have a doctor's prescription for the drug. How often, or under what circumstances, he uses ...