No, while both copyright DM and Robitussin-DM are used as chest suppressants, they don't exactly the same medications. Robitussin DM Cough Formula contains just dextromethorphan and guaifenesin mucus https://agneswlsz836740.blogpostie.com/63182176/is-copyright-dm-identical-to-robitussin-dm-cough-formula