I was under the influence of medications and drank which caused me to hallucinate now someone is facing felony charges how do I go about recanting it

If I understand your question, you implicated someone in a crime while you were under the influence of substances and you now wish to recant your statements because they were not truthful.   If so, you should notify the county prosecutor's office that is prosecuting the person you implicated and tell them.  They will almost certainly ask you to give a revised statement.  If you were legitimately under the influence of substances when you made the statements (i.e., not that you just lied), then it is highly unlikely that you will be prosecuted for seeking to recant them.  Nevertheless, it is best for you to hire an attorney to intercede on your behalf with the prosecutor's office.