What is the active ingredient in Zyrtec and in Claritin?

Zyrtec's label lists cetirizine 10 mg, antihistamine as its active ingredient. Claritin's label lists loratadine 10 mg, antihistamine as its active ingredient.

Which ingredients do Zyrtec and Claritin share?

Both labels list starch, magnesium stearate and lactose.

What's in Zyrtec vs Claritin?

from source

Zyrtec's active ingredient is cetirizine and Claritin's is loratadine; both labels list lactose, starch and magnesium stearate as inactive ingredients.

This page compares the two labels' ingredient lists as DailyMed carries them, not what either product does. Zyrtec: the label on DailyMed from Kenvue Brands LLC lists 7 ingredients, 6 of them MoleculeFinder molecules. What's in Zyrtec. Claritin: the label on DailyMed from Bayer HealthCare LLC. lists 4 ingredients, 4 of them MoleculeFinder molecules. What's in Claritin.

Active ingredients

Zyrtec

CetirizineC21H25ClN2O3
Active ingredient, 10 mg. Purpose on the label: Antihistamine (on the label as cetirizine hydrochloride) from source

Claritin

LoratadineC22H23ClN2O2
Active ingredient, 10 mg. Purpose on the label: Antihistamine from source

Inactive ingredients both list 3

Starch
Inactive ingredient on both labels (on Zyrtec's label as starch, corn) from source
Magnesium stearateC36H70MgO4
Inactive ingredient on both labels from source
LactoseC12H22O11
Inactive ingredient on both labels (on Zyrtec's label as lactose monohydrate) from source

Only on Zyrtec's label 3

MannitolC6H14O6
Inactive ingredient from source
SucraloseC12H19Cl3O8
Inactive ingredient from source

betadex

Only on Claritin's label 0

Nothing: every inactive ingredient on this label is on the other too.

Common questions

What is the difference between Zyrtec and Claritin?: Zyrtec's active ingredient is cetirizine and Claritin's is loratadine; both labels list lactose, starch and magnesium stearate as inactive ingredients.
What is the active ingredient in Zyrtec and in Claritin?: Zyrtec's label lists cetirizine 10 mg, antihistamine as its active ingredient. Claritin's label lists loratadine 10 mg, antihistamine as its active ingredient.
Which ingredients do Zyrtec and Claritin share?: Both labels list starch, magnesium stearate and lactose.

Product names are used only to name the products; MoleculeFinder makes no claim about either beyond its ingredient list. Unlinked names are the labels' own, for ingredients that are not yet MoleculeFinder molecules. Every product