Weight neutral medication are available and Depot injections are helpful if Patient is non-compliant. In many psychiatric illness major problem is less insight particularly in schizophrenia. Ask your Psychiatrist to do something for weight gain and compliance.

First I need more detailed history regarding medication intake. Yes depot injections are available which can be given once in 30-45 days. They are very convenient and can be titrated according to patients need. But we need to first come to a proper drug and dosage which suits her. This may require oral drugs for at least 1-2 months. Yes there are many new medications available for schizophrenia which don't increase weight. Rtms not very useful here. Kindly meet a psychiatrist to understand her disease, her denial, her treatment options and some managing tricks. I will be happy to guide you further.