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1 definition by Jesustussin

 
1.
DXM
The drug dextromorphan hydrobromide, found in cough medicine. Many cold medicines have acetaminophen, which will kill you if you overdose. So be careful.
This cough syrup has a lot of DXM, but the psuedoephedrine, chlorphineramine maleate, acetaminophen, and guaifenisen will kill you if you try to trip on it.
by Jesustussin March 28, 2003