Please review the following URL and make sure that it is spelled correctly. Requested URL: /drug-interactions/serious-index/apixaban... Plaquenil sunburnt Psoriatic arthritis response to plaquenil I am new to plaquenil and take 200mg twice a day. I have a cold now and wondered if anyone knows of any cold medicine that shouldn't be taken with it. I tried Robitussin and it seems to be fine. I haven't called my doc yet since the cold isn't too bad. Lise. Does Robitussin-DM Syrup Interact with other Medications? Severe Interactions. These medications are not usually taken together. Consult your healthcare professional e.g. doctor or pharmacist. Try our new better tasting* formula. Controls and relieves a frequent cough, plus thins mucus to relieve your chest congestion, too! Get your symptoms under control with a tough cough suppressant AND an effective expectorant. *Compared to Robitussin Cough + Chest Congestion DM 10mL. It also helps loosen phlegm from chest congestion so that you can cough it up and spit it out. Robitussin DM is used to temporarily relieve your cough from minor throat irritation or a cold. Robitussin dm and hydroxychloroquine Hydroxychloroquine Plaquenil Side Effects & Dosage for Malaria, Robitussin-DM Oral Interactions with Other Medication All well and plaquenilHemozoin chloroquin Oct 10, 2012 Robitussin - positive for opiates Robitussin A-C® - contains codeine Robitussin Cold and Flu - false positive for Ecstasy MDMA, Meth Robitussin DAC® - contains codeine Robitussin DM - false positive for Heroin, Opiates, Morphine Rohypnol - may test positive for Benzodiazepines Romilar - false positive for Heroin, Opiates, Morphine DRUG SCREENS. Substances that may cause a false.. Cough and Chest Congestion DM for Frequent Coughing Robitussin®. Mucinex dm and Plaquenil drug interactions - eHealthMe. Hi All, My Rheumy and I have seen some progress with the MTX and Plaquenil combo! She said she wants to push my MTX dose up at.6 now. She suggested I take Robitussin DM the days after I take my MTX. She said it helps with the post-MTX side effects. If we can hold down the post-MTX. Robitussin Guaifenesin is a useful medicine for loosening congestion in your chest and throat, but it doesn't last as long as other guaifenesin products. Robitussin Dm Guaifenesin / Dextromethorphan is okay for loosening congestion in your chest and throat, but it could prevent you from coughing the mucus up. You have to take it more often than other guaifenesin products. Sep 26, 2012 It depends on the kind of drug screen being performed. 1. If the Robitussin is the regular over-the-counter kind, it will only show positive if the drug screen is testing for ALCOHOL.