SHEET /m/loratadine · PubChem CID 3957 · CAS 79794-75-5 · REV 2026.07
Loratadine from source
C22H23ClN2O2 · 382.9 g/mol
Claritin · Alavert · Clarityn · Clarityne
Also sold as Claritin, Alavert from source
chemical compound; medication used to treat allergies
Fig. 1 · 2D structure RDKit
CCOC(=O)N1CCC(=C2C3=C(CCC4=C2N=CC=C4)C=C(C=C3)Cl)CC1
Where you'll find it
Not yet mapped to everyday foods or products.
The dose makes the poison inferred
A reported rat oral LD50 for Loratadine is 5,000 mg/kg, the dose lethal to half the animals tested. Scaled by body mass alone:
“The dose makes the poison” is a cross-species estimate shown as neutral science, not a threshold anyone should act on. Real toxicity depends on the person, not body mass alone.
Toxicity & hazards
Toxicity · LD50
5,000 mg/kg · very low toxicity · LD50 rat oral from source
The dose lens above scales this to a body weight.
1 more reported value
- 5,000 mg/kgLD50 · oral · mouse