Guaifenesin/Dextromethorphan/Pseudoephedrine, Oral: References

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EXEFEN DMX(dextromethorphan hydrobromide, guaifenesin and pseudoephedrine hydrochloride tablet). Larken Labs. Accessed 10/20/15 from http://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=65164bf9-8ce6-4aff-b0e1-98ce6de8bfc1