How is bipolar treated in the elderly?

My grandmother was diagnosed with bipolar disorder. How is bipolar treated in the elderly?

Typically it is treated by an expert geriatric psychiatrist and medications are needed depending on the severity.

Check this out...
https://pubmed.ncbi.nlm.nih.gov/17296540/#:~:text=Available%20options%20for%20the%20treatment,(ECT)%2C%20and%20psychotherapy.