Dextromethorphan and guaifenesin use needs to be monitored very carefully in people with "lousy metabolizer" CYP2D6 enzyme amounts and people who are sedated. This mix medication provides a huge median toxic dose (TD50) to median efficient dose (ED50) ratio (or therapeutic index) in these individuals. Shop at home temperature clear https://socialbookmarkgs.com/story18242017/details-fiction-and-dextromethorphan-dxm-for-sale-in-copyright