I have a severe allergy to polyethylene glycol. I get hives, tightness in my chest, difficulty breathing, swollen mouth, gums, tongue. I have been taking Concerta for several years, and never associated several of the allergic problems I have been having with Concerta. Recently, after increasing my dose of Concerta, I have experienced a rise in hypertension. However, this seems to be due the swelling caused by the polyethylene glycol I have recently discovered is found in at least six of the medicines I have been prescribed, including Concerta. Of all of them, I cannot do without my Concerta, or I will not be able to manage my life due to ADHD. A related question: Does anyone know about compounding of Concerta, and if this is possible to eliminate the polyethylene glycol?