It also helps loosen phlegm from chest congestion so that you can cough it up and spit it out. Robitussin DM comes in a liquid form that you take by mouth. Rheumatoid arthritis treatment plaquenil Hydroxychloroquine dose sle Hydroxychloroquine card Guaifenesin is an expectorant. It helps loosen congestion in your chest and throat, making it easier to cough out through your mouth. Dextromethorphan and guaifenesin is a combination medicine used to treat cough and chest congestion caused by the common cold, infections. Oct 25, 2016 Robitussin is an over-the-counter cough medicine for adults and children who are older than 12 years. The active ingredient in Robitussin is an expectorant called guaifenesin. Learn about drug interactions between sertraline oral and dextromethorphan-guaifenesin oral and use the RxList drug interaction checker to check drug combinations. Drugs A-Z Pill Identifier Supplements Symptom Checker Diseases Dictionary Media Robitussin DM contains two active ingredients: dextromethorphan and guaifenesin. It comes in regular-strength, maximum-strength, sugar-free, and children’s formulations. Tussin dm and hydroxychloroquine interaction Hydroxychloroquine and Risk of Diabetes in Patients With., Robitussin Side Effects Hydroxychloroquine retinal toxicity risk factors Hydroxychloroquine/Possible QT Prolonging Agents Interactions. This information is generalized and not intended as specific medical advice. Consult your healthcare professional before taking or. Hydroxychloroquine/Possible QT Prolonging Agents Interactions. Sertraline oral and dextromethorphan-guaifenesin oral Drug Interactions.. Robitussin-DM Oral Uses, Side Effects, Interactions.. If you have an allergy to guaifenesin, dextromethorphan, or any other part of Robitussin DM guaifenesin and dextromethorphan liquid. If you are allergic to Robitussin DM guaifenesin and dextromethorphan liquid; any part of Robitussin DM guaifenesin and dextromethorphan liquid; or any other drugs, foods, or substances. Tell your doctor about the allergy and what signs you had. Robitussin DM contains two active ingredients dextromethorphan and guaifenesin. Dextromethorphan is an antitussive drug used to help relieve constant coughing. It helps stop your cough by decreasing activity in your brain that triggers your impulse to cough. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is.