Im not sure if this is a us thing but often times changes in insurance and other thins causes changes in doctors and generally things that get prescribed before get carried forward or maybe they get changed for new ones that work a bit different and each one is for one symptom. Then you get medications prescribed for side effects. You can eventually get this hodge podge where different medications are interfering with each other and its a big mess. Unfortunately if you in the us getting it properly sorted is pretty hard to. In my dads case he was put in the hostpital where is vitals could be constantly monitored and they took him off everything and then kinda started from the start on his biggest issues with the best options. I think they even tried a few to see which had the last side effects for him. Then they sorta built it back up to where he had a decent as possible quality of life on as few as sorta possible with a minimum of a medication cover the side effects of another medicine. He had to be in the hospital for pretty long. Like many weeks. To get it all sorted.