Blood test: Dextromethorphan can be measured in the blood, but one would need a suspicion of an overdose in order to obtain this test. Dextromethorphan is structurally related to the opiate receptor agonist, codeine, and symptoms can include drowsiness, dizziness, disorientation, seizures and breathing irregularities. It is important to let the physician know all medications taken, including otc preparations.
Answered 8/27/2013
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