Question 1

What is Levocetirizine used for?

Accepted Answer

Levocetirizine is indicated for: Allergic dermatitis, rhinitis.

Question 2

What routes can Levocetirizine be administered by?

Accepted Answer

Available routes: PO.

Question 3

Which species have cited Levocetirizine dosing data?

Accepted Answer

Levocetirizine dosing in the ExoticRx formulary covers 2 species: Cat (Domestic), Dog (Domestic).

Question 4

Is Levocetirizine a controlled substance?

Accepted Answer

Levocetirizine is not federally scheduled as a controlled substance, but is veterinary prescription only in most jurisdictions.

Question 5

What are the warnings or contraindications for Levocetirizine?

Accepted Answer

Slightly more potent than cetirizine at half the dose. Minimal sedation. Renally eliminated — adjust in renal impairment.

Question 6

What are the side effects of Levocetirizine?

Accepted Answer

Slightly more potent than cetirizine at half the dose. Minimal sedation. Renally eliminated — adjust in renal impairment.

Question 7

How does Levocetirizine work?

Accepted Answer

Active R-enantiomer of cetirizine with higher H1 receptor affinity. Non-sedating antihistamine that stabilizes mast cells and reduces eosinophil chemotaxis.

Species	Route	Dose	Frequency	Evidence	Source
Dog (Domestic)	PO	0.1–0.25 mg/kg	q12-24h	Weak	Veterinary Dermatology Literature Review
Cat (Domestic)	PO	0.1–0.25 mg/kg	q12-24h	Extrapolated	Veterinary Dermatology Literature Review

Levocetirizine

Drug Class

Routes

Indications

Mechanism of Action

Side effects & warnings

Species with Levocetirizine dosing data (2 dose rules)

Evidence levels across 2 dose rules

Backed by a published primary source

Sample dosing (2 of 2 cited rules)

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