What is the active ingredient in zyrtec 4h2?
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it would be the sudafed that is behind the pharmacy counter. this sudafed is one of the many ingredients used to manufacture meth.
My doctor prescribed cheratussin ac for coughing at night, also have sinus congestion which Zyrtec D was recommended. Have recently undergone surgury ...
... here nowI need to know if I can take a 12 hour sudafed at 7:00 pm when I have already taaken 2 Aleves at 12;00 this after noon?