can I sue a pharmaceutical company and the hospital

The answer to your question is yes, you can sue in this country for anything, but just because you can, doesn't mean you should. Medical malpractice cases are exceedingly difficult to pursue and win in Wisconsin. I wrote a blog at our law firm's  web site under personal injury issues that you shuld read You can also go to google and review and excellent article that the Milwaukee Journal Sentinel did back in either 2015 or 2016 on the same subject. If you feel strongly that there was malpractice and you were permanently damaged, you will need to compile all of the releveant medical and hospital records. Once you receive them, you would have them reviewed by a medical malpractice attorney. If the attorney thinks there is something there, they will hire an outside medical consultant to review the records to determine if you have a viable claim. The statute of limitations for suing for medical malpractice in Wisconsin is three years. Failure to file a lawsuit within 3 years from the date of the original occurrence, would forever bar your claim.