How depression is related to Narcotics ?
Before SSRI's, Opiates were commonly used as antidepressants until the mid-1950s. It was then discovered that they are exceedingly addictive. Today, treating depression with opiates is usually not considered.
However, studies have shown that some opiates can be beneficial to some depression sufferers. In 1995, Harvard Medical School conducted a clinical trial that demonstrated that some patients could be treated with an opiate called Buprenorphine.