What are the long term effects of risperdal consta?

I've been on risperdal consta for about a little over a year. It is not by choice that I am on this drug its the result of me going to the hospital a while back and the doctors putting me on a CTO which requires you to take treatment. I finally got down to 25 mg of consta but it still feels way to high i sleep a whole lot and when im awake i still feel tired and dull. I also have mild chest pain and headaches. I was just wondering if anyone knows anything about what the drug can do to you long term because I've started to feel feelings of "dead brain" and empty headedness, sometimes to the point where i cant even talk or think. any information shared would be appreciated thanks.