Contains no aspirin , acetaminophen , ibuprofen , naproxen , pseudoephedrine or dextromethorphan .
不含阿司匹林，扑热息痛，布洛芬，萘普生，伪麻黄素或美沙芬。
Indeed , honey is more effective than dextromethorphan , a cough syrup ingredient , according to another study published in the december issue of pediatrics .
A common ingredient in many cough suppressants , dextromethorphan , may interact with an anti-depressant such as prozac or paxil to produce a serious , though infrequently reported , problem called serotonin syndrome .
