What's in Benadryl Allergy vs Zyrtec?

Active ingredients

Inactive ingredients both list 0

The two labels list no inactive ingredient in common.

Only on Benadryl Allergy's label 11

• Citric acidC6H8O7

  Inactive ingredient (on the label as anhydrous citric acid) from source

• Allura Red ACC18H14N2Na2O8S2

  Inactive ingredient (on the label as FD&C red No. 40) from source

• GlycerolC3H8O3

  Inactive ingredient (on the label as glycerin) from source

• GlycyrrhizinC42H62O16

  Inactive ingredient (on the label as ammonium glycyrrhizate) from source

• WaterH2O

  Inactive ingredient from source

• Sodium benzoateC7H5NaO2

  Inactive ingredient from source

• Sodium chlorideClNa

  Inactive ingredient from source

• Trisodium citrateC6H5Na3O7

  Inactive ingredient (on the label as sodium citrate, unspecified form) from source

• SucroseC12H22O11

  Inactive ingredient from source

• D&C red No. 33
• poloxamer 407

Only on Zyrtec's label 6

• Starch

  Inactive ingredient (on the label as starch, corn) from source

• Magnesium stearateC36H70MgO4

  Inactive ingredient from source

• MannitolC6H14O6

  Inactive ingredient from source

• SucraloseC12H19Cl3O8

  Inactive ingredient from source

• LactoseC12H22O11

  Inactive ingredient (on the label as lactose monohydrate) from source

• betadex

Common questions

What is the difference between Benadryl Allergy and Zyrtec?

Benadryl Allergy's active ingredient is diphenhydramine and Zyrtec's is cetirizine; the two labels share no inactive ingredient at all.

What is the active ingredient in Benadryl Allergy and in Zyrtec?

Benadryl Allergy's label lists diphenhydramine 12.5 mg, antihistamine as its active ingredient. Zyrtec's label lists cetirizine 10 mg, antihistamine as its active ingredient.

Which ingredients do Benadryl Allergy and Zyrtec share?

The two labels, Benadryl Allergy's and Zyrtec's, list no ingredient in common.