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SHEET /m/levocetirizine · PubChem CID 1549000 · CAS 130018-77-8 · REV 2026.07

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Levocetirizine

from source

C21H25ClN2O3 · 388.9 g/mol

Xazal

What is Levocetirizine?

The active mirror-image half of cetirizine, sold over the counter as Xyzal for hay fever and hives. Levocetirizine (C21H25ClN2O3, 389 g/mol) is an antihistamine sold over the counter. from source

CategoryOTC medicine
Chemical familyCarboxylic AcidsAromaticsEthersHalogenated
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Fig. 1 · 2D structure RDKit

SMILESC1CN(CCN1CCOCC(=O)O)[C@H](C2=CC=CC=C2)C3=CC=C(C=C3)Cl

Where you'll find it

Sold over the counter, without a prescription. See the rest of the otc medicine group.

Keep roaming

Where Levocetirizine leads

Relatedcomputed
Cetirizine100% similarBoth carry a carboxylic acid and an ether group.Hydroxyzine74% similarBoth carry an ether group.Meclizine48% similarBoth carry an aromatic ring and a halogen atom.Cyclizine41% similarBoth carry an aromatic ring.

Compare with

Levocetirizine vs Cetirizine

Sources & methodology

PubChem CID
1549000
Wikidata
Q421091
Structure
PubChem → RDKit
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MoleculeFinder fingerprint similarity
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