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Cetirizine

Allerset, Cetryn, Hitrizin, Lergy · ATC code R06AE07

Also known as: Cetirizin, setirizin · Brand names: Allerset, Cetryn, Hitrizin, Lergy, Ressital, Rynset, Setidril, Setiral, Setrazin, Setronal, Yenizin, Zyntra, Zyrtec, Quzyttir, Zerviate

Key facts
Active substance
Cetirizine
Drug class
Histamine antagonist
ATC code
R06AE07
Authorisation
authorised nationally; no central EU authorisation
Information as of
2026-10-27

Key facts

Cetirizine is an antihistamine that selectively inhibits peripheral H1 receptors. This US label (oral solution) covers children with perennial allergic rhinitis or chronic urticaria.

What it is used for

  • Relief of symptoms of perennial allergic rhinitis (e.g. due to dust mites, animal dander, molds) in children 6 to 23 months of age
  • Treatment of uncomplicated skin manifestations of chronic idiopathic urticaria in children 6 months to 5 years of age

Dosing

  • Can be taken without regard to food
  • Children 2 to 5 years (chronic urticaria): initial dose 2.5 mg (2.5 mL) once daily; may be increased to a maximum of 5 mg per day (5 mL once daily or 2.5 mL every 12 hours)
  • Children 6 to 23 months: 2.5 mg (2.5 mL) once daily
  • Children 12 to 23 months: may be increased to a maximum of 5 mg per day, given as 2.5 mL every 12 hours

Contraindications

  • Known hypersensitivity to cetirizine, any of its ingredients, or hydroxyzine

Important warnings

  • Somnolence has been reported; caution when driving or operating potentially dangerous machinery
  • Avoid concurrent alcohol or other CNS depressants
  • New-onset pruritus, sometimes severe, has been reported after stopping long-term use
  • Safety and effectiveness under 6 months of age have not been established

Side effects

  • In children mostly mild or moderate; discontinuations due to adverse reactions were uncommon
  • Reported include headache, pharyngitis, abdominal pain, coughing, somnolence, diarrhea, epistaxis, nausea, vomiting
  • In young children: irritability/fussiness, insomnia, fatigue and malaise

Interactions

  • Alcohol and other CNS depressants may further reduce alertness
  • A high dose of theophylline caused a small decrease in cetirizine clearance

Summary of the official product information, written with AI (Claude, Anthropic) on 2026-10-28. Every number was checked automatically against the original text. Not reviewed by a physician – the full official text is authoritative.

Full official text →

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For patients

Patient information (US)

This product has no separate US patient information.

Authorisation and brand names by country

Medicines with exactly this active-substance composition, as listed in the national registers – alphabetical and without ranking. Whether a product is currently available is not shown here.

Turkey

  • AllersetSANTA FARMA İLAÇ SAN. A.Ş. · 5 register entries
  • CetrynTRIPHARMA İLAÇ SAN. VE TİC. A.Ş. · 5 register entries
  • HitrizinDEVA HOLDİNG A.Ş. · 5 register entries
  • LergySANOVEL İLAÇ SAN. VE TİC. A.Ş. · 3 register entries
  • RessitalBİOFARMA İLAÇ SAN. VE TİC. A.Ş. · 1 register entry
  • RynsetALİ RAİF İLAÇ SAN. A.Ş. · 4 register entries
  • SetidrilWORLD MEDICINE İLAÇ SAN. VE TİC. A.Ş. · 3 register entries
  • SetiralTOPRAK İLAÇ VE KİMYEVİ MADDELER SAN.VE TİC. A.Ş. · 2 register entries
  • SetrazinNOBEL İLAÇ SAN. VE TİC. A.Ş. · 1 register entry
  • SetronalASET İLAÇ SAN. VE TİC. A.Ş. · 1 register entry
  • YenizinRECORDATİ İLAÇ SAN. VE TİC. A.Ş. · 1 register entry
  • ZyntraSANTASYA İLAÇ KOZMETİK MEDİKAL İTRİYAT PAZARLAMA SAĞLIK HİZMETLERİ VE İNŞAAT SAN. TİC. LTD. ŞTİ. · 1 register entry
Show all 13 brand names
  • ZyrtecUCB PHARMA A.Ş. · 3 register entries

Source: TİTCK – Ruhsatlı Beşeri Tıbbi Ürünler Listesi, as of 2026-10-16

USA

  • QuzyttirTerSera Therapeutics LLC · 1 register entry
  • ZerviateHarrow Eye, LLC · 1 register entry

Source: U.S. FDA – Drug labels (openFDA/DailyMed), as of 2026-10-28

Brand names in 2 more European countries
France
Cetirizine Almus, Cetirizine Biogaran
Spain
Cetirizine Uxa

EMA – Article 57 product data (EU/EEA), 2026-10-28

Medelix receives no money from pharmaceutical companies. Brand names are listed alphabetically and without ranking.

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Sources

  1. U.S. Food and Drug Administration. Cetirizine hydrochloride (Advagen Pharma Ltd.,) – Prescribing Information, 2026-03-06. DailyMed (NLM), 2026-10-27. https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=0956baea-f0ad-4aac-9464-831840db9230
  2. TİTCK – Ruhsatlı Beşeri Tıbbi Ürünler Listesi, 2026-10-16. https://www.titck.gov.tr/dinamikmodul/85
  3. U.S. FDA – Drug labels (openFDA/DailyMed), 2026-10-28. https://dailymed.nlm.nih.gov/dailymed/
  4. Wikidata (CC0): ATC R06AE.

Editorial: Medelix editorial team · last updated 2026-10-27 · How these pages are made · Report an error

Source: U.S. Food and Drug Administration (FDA), prescribing information, via DailyMed (NLM); public domain. Not advertising, not a treatment recommendation. For questions about your own treatment, ask your doctor or pharmacist.