Because dextromethorphan is undoubtedly an optical isomer with the Schedule II opiate levomethorphan (but does not act like an opiate), an exemption was essential to maintain it an uncontrolled substance. The Federal Analog Act will not implement to dextromethorphan because a different drug software has long been filed for it.[citation https://ziongralt.blogsumer.com/29668176/the-smart-trick-of-dextromethorphan-dxm-for-sale-in-copyright-that-no-one-is-discussing