Can luvox (fluvoxamine) stop suicide thoughts?

Yes it can. Luvox (fluvoxamine) is a typical ssri antidepressant and like any antidepressant , it treats all symptoms related to depression including negative , suicidal thoughts.
Suicidal thoughts. If you were having suicidal thoughts right now, go to your emergency room immediately. Turn off the computer, and do it right this minute.