HPLC method for analysis of pseudo, dex and chlor

[Analyst1]

Hi All,

I was just wondering if you could suggest a method for separating APAP, psuedoephedrine HCl, dextromethorphan HBr and chlorpheniramine maleate?

Thanks

[SIELC_Tech]

Here are methods which are used in QC for cough and cold medications (Tylenol, NyQuil):
http://www.sielc.com/compound_119.html
regards,

Vlad