Suggest Remedy For Depression

I have a 74yr old mother that is in great depression , I had to take her to a mental hospital about a month and half ago, the doctors try several antidepressant but she got out worse, then I took her to see a doc for follow up and he started her in another med, about a 2 weeks ago she overdose she was back again in a different mental hospital and they gave her desipramine 50mg 3 times with atrax 25mg 3 times , she was doing good at the hospital but now that she is home is complaining about weakness, feeling tired , not eating , she says she feels heavy I am afraid that she might try doing something again