I don't think it's established that suicidal ideation is a side-effect of anti-depressants. Drug companies and insurers freak out over observations of these things in people who take them, so they are pretty much obliged to report it as a possibility even it's a rare event. There is a theory that some people feel more energised before the depression lifts, and that increases the risk for suicide. Also, they can't prove that the anti-depressants just aren't working and the suicide/ideation would have happened anyway. I've never heard that suicide is a side-effect of stopping them. But it stands to reason that if the depression returns then so might suicidal thoughts, especially if it returns quite dramatically. It's all still very speculative. Also not a health professional, but have studied clinical psychology post-grad and taken anti-depressants.