As for medications, look for expectorants containing the active
ingredient guaifenesin, which can bust up thick mucus, he says.
Pseudoephedrine can be found as a single
ingredient or in combination with other drugs like antihistamines,
guaifenesin, dextromethorphan, paracetamol (acetaminophen), and / or NSAIDs (e.g., aspirin, ibuprofen, etc.).