In our recent question and answer, ours pharmacist discusses whether or not it ok to take it Zyrtec (cetirizine) v Mucinex.

You are watching: Can i take mucinex and zyrtec


Jay asked

This afternoon roughly 4pm i took a Zyrtec because that allergy connected symptoms, 6 hours I take it Mucinex fast max to assist with runny nose and also sneezing. I discovered out the both have actually antihistamine in them and also I to be concerned about if i took also much. Both have actually 10mg the antihistamine in them. Have to I be worried?


You don"t need to be worried. If you take it Zyrtec and also Mucinex Fast-Max sixhours apart, the worst friend are most likely to endure is added drowsiness and also drymouth. Using alcohol or other drugs with either or both of these medicationswill likely intensify the drowsiness considerably. This may greatly impair yourability to journey or use machinery, therefore please usage caution and be safe.

Mucinex Fast-Max is a product heat in i beg your pardon there are multiple version intended come treat a selection of symptoms. Reviewing the ingredients of every the Fast-Max heat ofproducts, the nighttime varieties contain one of two people diphenhydramine or doxylamineas an antihistamine.

A fast lesson top top antihistamines. There room two main families ofantihistamines, let’s contact them old-school and also new-school to make it easier toremember.

Old-school antihistamines include drugs choose

Diphenhydramine (Benedryl)Doxylamine(Unisom, NyQuil)Chlorpheniramine(Chlor-Trimeton, Chlor-Tabs)

These drugs block histamine receptors in both thebrain and also the remainder of the body; they likewise interact with several various other receptortypes. This renders them an excellent at relieving allergy symptoms, but additionally gives lock afew unpleasant next effects, particularly sedation/drowsiness, dried mouth, anddry eyes.

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New-school antihistamines include drugs like:

Cetirizine (Zyrtec)Fexofenadine (Allegra)Loratadine (Claritin)

These drugs, uneven the old-school ones, are designed so the they can’tcross the barrier that protects the brain from harmful chemistry in her blood.The result is they have the right to only block histamine receptors found in the rest of yourbody, and also not in the brain, and also so they develop allergy relief with much lessdrowsiness and also other side effects.

That said, this doesn’t average they can’tmake girlfriend drowsy, and taking lock with various other antihistamines, alcohol, or drugsthat affect the central nervous system (bupropion, benzodiazepines likealprazolam or clonazepam, and others) have the right to produce an extensive additive effectsthat can impair your capability to do decisions or operate a vehicle.

Again, mixingthese substances should be avoided if possible, and also if you must, usage caution.Thanks for her question!