Dear Healthcare Professional, Shortage of CYSTAGON mercaptamine (cysteamine) (as bitartrate) 150mg capsule bottle (AUST R: 60452) and alternative supply arrangement under Section 19A of the Therapeutic Goods Act 1989 The Australian registered medicine, CYSTAGON mercaptamine (cysteamine) (as bitartrate) 150mg capsule bottle (AUST R: 60452), sponsored by Alphapharm Pty Ltd, will be in short supply from late June 2026. Pro Pharmaceuticals Group has arranged supply of an alternat