Is it possible to become addicted to over the counter medications? My 75 year old mother recently moved to my town so that I could help her financially, etc. I have become very concerned about the amount of excederine, prilosec, nasal spray, aleve, and other antacid medicines that she takes. She has a history of bleeding ulcers, she smokes about 2 packs of cigarettes a week, high blood pressure, and other ailments of old age. I didn't realize that she was taking so much of this medicine. Especially the excedrine and prilosec. I have not been able to accurately assess how much excedrine she takes because I think she buys it on the sly. I wouldn't be surprised if it is 10 to 20 a day. The prilosec is worse. She has a 30 day prescription, plus will buy an additional 56 otc pills or more per month, plus various antacids. I know that she is taking too much and when I question her she gets very angry and defensive. Getting back to the original question, when she is out of these medications she is in a panic and flips out. I moved her out of my house because of these monthly rages when she runs out and I cannot afford to purchase these medications and I am uncomfortable with it because it is too much. I don't know what I am dealing with: addiction or a real medical need. Any advice would be appreciated.