Hi, Sammie, can't addres the blood count issues, but the Fentanyl patch is something I can address-as Nelie said- it put my husband into outer space-as did scopalimine [an experiment to dry up his excess mucous] and amitriptyline [to try to stop the headaches]. He went bonkers on each of them. You need to review each med he is taking for side effects and then review what mixture of meds. he is on. Our pharmacist was a great help to me in explaining each one and the effects [I also read the drug info carefully] We tried the fentanyl twice and both times got the same reaction- very scary and very upsetting. Good luck. Amy in the Ozarks