So ' SWIM has stumbled upon a vigorous amount of mucinex DM tablets ' . The question SWIM has to ask is ' can the two ingredients be separated ' ? They contain 60 mg dextromethorphan Hbr && 1200 mg of guaifenesin ' . As SWIY probably already knows ' the pills are greenish on one side && white on the other ' which side contains the dxm &' can it be separated easily by cutting or shaving it off ' ?