Not Medical Advice:
An oval yellow pill with the imprint 44 533 on the front is 20mg/400mg of Mucus relief DM dextromethorphan guaifenesin (made by Nash Finch Company).
Mucus relief DM dextromethorphan guaifenesin is a respiratory combination that is used for cough, and expectoration. There is a low risk of abuse with this drug. This medication may pose a risk to an unborn fetus.
NBC News reports that many over-the-counter cough medications contain guaifenesin, and while many may turn to these during this nasty flu season, the American Lung Association warns that there is no evidence at all that it helps, and the American College of Chest Physicians suggests not using any cough syrup.