Mom is 99 years old, bedridden and hallucinates a lot. Is there any advantage to putting her on antidepressants?

If the hallucinations are benign, do nothing. Let her enjoy them.

If the hallucinations distress her, seek medical advice. Unfortunately hallucinations are hard to treat. I have not heard of anti-depressants helping, but perhaps her doctor knows of one that sometimes works that way.

Look up all the causes of hallucinations. If any seem to apply, correct the situation. For example, dehydration can cause hallucinations. So can too much caffeine. If these might apply, work with the nursing home to correct the problem. Many causes aren't so easy to address. Dementia often involves hallucinations.

Do the hallucinations cause her distress, agitate her?

I wouldn't.

Is that what the geriatric psychiatrist is recommending?

Is there a downside to trying them?

Is that what the geriatric psychiatrist is recommending?

Is there a downside to trying them?