Objective : A method of HPLC for the determination of complex preparations of guaiphenesin , chlorpheniramine maleate and dextromethorphan hydrobromide has been described Methods : C 18 column , 0.
Drugs like ketamine and PCP engage similar receptors, which is why it's important to take dextromethorphan as directed, as high doses are notorious for causing hallucinatory effects.