Not sure if this supports the article or is just a warning, but going off of anti-depressants can be fatal. If depression relapses anti-depressants that once worked can prove ineffective. (edit: wrongly said SSRIs and not anti-depressants)

David Foster Wallace:

Wallace died by suicide on September 12, 2008, at age 46. Wallace's father reported in an interview that his son had suffered from depression for more than 20 years and that antidepressant medication had allowed him to be productive.[42] When Wallace experienced severe side effects from the medication, he attempted to wean himself from his primary antidepressant, phenelzine.[43] On his doctor's advice, Wallace stopped taking the medication in June 2007,[42] then the depression returned. Wallace received other treatments, including electroconvulsive therapy. When he returned to phenelzine, he found that it had lost its effectiveness.[43] His wife kept a watchful eye on him in the following days, but on September 12, Wallace went into the garage, wrote a two-page note, and arranged part of the manuscript for The Pale King before hanging himself from a patio rafter.[49]

It's something to be very careful about...