You need to get instructions from your prescribing doctor on how best to do this. Is your medication not helping? If not, then you need to let your doctor know this. If you feel you no longer need it...be careful....because medication makes us feel so much better that we often reach a point where we feel we don't need it only to find out when weaning off of it that we do. Only your doctor can best advise you on how to wean off safely and with the fewest problems. Hope this helps and best wishes.
Please read my feedback on your other post where you list all of your meds.