It's not a prescription drug but it has pseudoephedrine. I take 2 in the morning and 2 at night. I have been doing for about a year now. It helps me stay awake in the morning and alleviates all my back pains and strains. Is this a form of abuse or addiction? I think I can stop but I have read nothing about long term affects of Advil Cold and Sinus - I am still below the limit of 6 per day. Any thoughts from non-doctors out there?