I have been presecribed Amitriptyline 10mg x 5 to take at night. I suffer muscle stiffness and pain and have been taking this for two years. Recently the tablets have been changed to a blue coating (E132 I think). This has caused an allergic reaction. Can you supply this drug without the blue coating Can I get amitriptyline without the blue dye coating - I am allergic to this colouring.