Cancer drug symptoms and conditions

I am writing in regard t my father in law . He says this is a cancer drug to help pain is this true? He is higher then a kite is right to thanks

I would like to stop taking paxil, I have been on it for 3 yrs. When I skip my medicine I get what feels like electrical shocks in my neck & head. I wasnt sure if I had a pinched nerve at 1st but began to associate this with the event that I had not taken my meds. I also have onset of panic attacks & rapid heart, & terrible terrible forgetfulness, as to even what cabinet I would like to open, I open the wrong one, go into the wrong doorway, wrong driveway. I am very concerned. I have told my Dr. that I would like to get off this Paxil but Ive been told that it would be best since I was suffering from anxiety attacks in past. I would like to be committed to be able to handle the withdrawls. If anyone has been successful in stopping Paxil and now feels pretty back to normal, please let me know. Thanks