I just checked Webmd's drug interactions feature. Both drugs increase serotonin and should not be taken together. They can cause serotonin syndrome.

I was put on Viibryd and Buspar for years and not a single health care professional knew it. Now I check everything before I take it because they simply don't know.

They prescribe Buspar to get away from those nasty benzodiazepines so we don't become addicts but killing us with their ignorance is okay.