Yes I have been but not for being suicidal, for being manic with psychosis. My pdoc and I tried actively to get it under control for 5 months and I was then hospitalized. However that was a normal pattern with my mania even on heavy meds. I just always had a way of avoiding hospital stays before that. At that point I had been medicated and had been under care for about 7 years.

In my case meds did not improve my moods in that whole time.

It's not uncommon at all for a patient who has been in care and medicated for a long time to still end up being hospitalized.