Medicine guide

CETIRIZINE

As listed in the register: CETIRIZINE

5 mg · tablet

  • Available without prescription
  • Breathing, airways, allergies and cough
Active substance
Cetirizine Hydrochloride
Made by
Apotex Inc

Quoted from the official source. Not yet reviewed by Mediclarum — the leaflet in your pack is authoritative.

What it is for

Medicine groupBreathing, airways, allergies and coughR06AE07

Mediclarum has not yet retrieved and stored the official label for this product, so none of its text is shown here. Open the official leaflet

How it works

This product’s leaflet is published as a scanned document. This section quotes the US prescribing label for the same active substance (cetirizine hydrochloride). It describes the substance, not this Bulgarian product — its uses and doses can differ.

Mechanism of Actions Cetirizine, a human metabolite of hydroxyzine, is an antihistamine; its principal effects are mediated via selective inhibition of peripheral H 1 receptors.

The antihistaminic activity of cetirizine has been clearly documented in a variety of animal and human models.

Peak level after1 h
Half-life8.3 h
Mostly cleared after≈ 41.5 hfive half-lives — our arithmetic
PeakHalf gone41.5 h0
The shape is a standard model drawn from the two times above, not a measurement. How fast a medicine acts and wears off also depends on the dose, the form and the person.
How the body breaks it down

Cetirizine is metabolized to a limited extent by oxidative O-dealkylation to a metabolite with negligible antihistaminic activity.

With food

Food had no effect on the extent of cetirizine exposure (AUC) but T max was delayed by 1.7 hours and C max was decreased by 23% in the presence of food.

Quoted from the prescribing label, sections “Mechanism of Action” and “Pharmacokinetics”. DailyMed · 2025-10-16

Safety of the active substance

This product’s leaflet is published as a scanned document. This section quotes the US prescribing label for the same active substance (cetirizine hydrochloride). It describes the substance, not this Bulgarian product — its uses and doses can differ.

Must not be used by
  • Cetirizine hydrochloride oral solution, USP is contraindicated in those patients with a known hypersensitivity to it or any of its ingredients or hydroxyzine.

Quoted from the US prescribing label for the same active substance. Your own pack’s leaflet is the authority for your product. DailyMed

Same active substance, strength and form in other countries

Matched on active substance, strength and kind of form only. This is not a statement that the products are equivalent or interchangeable: other ingredients, release and approved uses can differ — ask a pharmacist before swapping.

Medicine passport: one printable page to show a pharmacist abroad

BulgariaNo exact match for this strength and form

SpainNo exact match for this strength and form

NetherlandsNo exact match for this strength and form

SwitzerlandNo exact match for this strength and form

Details

Made byApotex Inc
Active substanceCetirizine Hydrochloride
Used inBreathing, airways, allergies and cough
Strength5 mg
Formtablet
ClassificationR06AE07 · Breathing, airways, allergies and cough
Routeoral
Dispensing (as stated by the register)NON-PRESCRIPTION DRUGS
StatusApproved
MarketedNo — authorised but not currently marketed, according to the register
DIN02375087
DPD drug code86048

Source: Drug Product Database · 2026-09-30 · not reviewed by a clinician

Contains information licensed under the Open Government Licence – Canada. Reuse terms: Open Government Licence – Canada.

Other strengths and forms

5 products are sold under this name. Grouped by form; a number on a strength means several companies make it.

Same active substance

These contain the same substance. That does not mean one can replace another — ask a pharmacist.