I was reading off the back label of a Nyquil bottle and I realized instead of dextromethorphan, it said dextromethorphan HBr.

I also realized that instead of phenylephrine, it said phenylephrine HCl.

Do HBr and HCl give any medical advantages? Or are they included in the medication simply because such substances cannot be removed during synthesis?

I don't know anything about pharmacological science, so any help will be appreciated.

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1 Answer 1


Dextromethorphan and dextromethorphan HBr are the same as are dextromethorphan and dextromethorphan HCL

HCL (hydrochloride) is a salt added to medicine to ease in digestion or absorption. HBr (hydrobromide) is used for the same purpose. These salts are sometimes included on labels, but it is recommended that they be excluded in most cases to reduce confusion.

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