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. Can plaquenil cause depression Can you take hydroxychloroquine and aspirin 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. Robitussin prescribing information indicates that people with high blood-pressure should avoid using this medication 2. Most over-the-counter cold medications contain ingredients that exacerbate hypertension. There are alternative medications that relieve cold and flu symptoms available for people with high blood pressure. 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 Diazepam oral and dextromethorphan hbr oral Drug Interactions., Robitussin Side Effects Checking vision plaquenilSymptoms of hydroxychloroquineCan i buy hydroxychloroquine from canadaWhat does plaquenil do for rheumatoid arthritis 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. Is Robitussin Okay to Take If I Have High Blood Pressure.. Tussin DM Uses, Side Effects & Warnings -. WebMD provides information about interactions between Quinidine Sulfate Oral and qt-prolonging-agents-hydroxychloroquine. Kligfield P, Menon V, Philippides GJ, Roden DM, Zareba W. Prevention. 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. There is 1 alcohol/food/lifestyle interaction with Robitussin Cough + Chest Congestion DM dextromethorphan / guaifenesin Using dextromethorphan together with ethanol can increase nervous system side effects such as dizziness, drowsiness, and difficulty concentrating.