Patient info

Cetirizine Dihydrochloride 10 mg film-coated tablets – patient leaflet, side effects, dosage

Updated:
Key facts
Status:
With or without prescription
Medicine strength:
10 mg
Contains active substance:
ATC code:

Patient leaflet - Cetirizine Dihydrochloride 10 mg film-coated tablets

1. WHAT CETIRIZINE TABLET IS AND WHAT IT IS USED FOR

Cetirizine dihydrochloride is the active ingredient of Cetirizine tablet, which belongs to a group of medicines called antihistamines. Cetirizine is an antiallergic medication. In adults and paediatric patients 6 years and above, Cetirizine is indicated

  • for the relief of hay fever (allergic rhinitis) and year round allergies such as dust or pet allergies (perennial allergic rhinitis)
  • for the relief of chronic nettle rash (chronic idiopathic urticaria).

You must talk to a doctor if you do not feel better or if you feel worse after 3 days.

2. WHAT YOU NEED TO KNOW BEFORE YOU TAKE CETIRIZINE TABLETS

Do NOT take Cetirizine Tablets

  • if you have a severe kidney disease (severe renal failure with creatinine clearance

    below 10 ml/min);

  • if you are allergic to cetirizine dihydrochloride, to any of the other ingredients (listed in

    section 6), to hydroxyzine or to any piperazine derivatives (closely related active ingredients of other medicines).

Warning and precautions

Talk to your doctor, nurse or pharmacist before taking Cetirizine Tablets. If you are a patient with renal insufficiency, please ask your doctor for advice; if necessary, you will take a lower dose. The new dose will be determined by your doctor. If you have problems passing urine (like spinal cord problems or prostate or bladder problems), please ask your doctor for advice.

If you are an epileptic patient or a patient at risk of convulsions, you should ask your doctor for advice.

No clinically significant interactions have been observed between alcohol (at the blood level of 0.5 per mille (g/l) corresponding to one glass of wine) and cetirizine used at the recommended doses. However, there are no data available on the safety when higher doses of cetirizine and alcohol are taken together. Therefore, as it is the case with all antihistamines, it is recommended to avoid taking Cetirizine Tablets with alcohol. If you are scheduled for allergy testing, ask your doctor if you should stop taking Cetirizine Tablets for several days before testing. This medicine may affect your allergy test results. This medicine does not normally make you feel sleepy. However, everyone reacts differently. If you do feel sleepy do not drive or use tools or machines. Children

Do not give this medicine to children below the age of 6 years because the tablet formulation does not allow the necessary dose adjustments.

Other medicines and Cetirizine Tablets

Tell your doctor, nurse or pharmacist if you are taking, have recently taken or might take any other medicines.

Cetirizine Tablets with food and drink

Food does not affect absorption of Cetirizine Tablets.

Pregnancy and Breast-feeding

If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor for advice before taking this medicine.

Cetirizine Tablets should be avoided in pregnant women. Accidental use of the drug by a pregnant woman should not produce any harmful effects on the foetus. Nevertheless, the medicine should only be administered if necessary and after medical advice. Cetirizine passes into breast milk. A risk of side effects in breastfed infants cannot be excluded. Therefore, you should not take Cetirizine Tablets during breast-feeding unless you have contacted a doctor.

Driving and using machines

Clinical studies have produced no evidence of impaired attention, alertness and driving capabilities after taking Cetirizine Tablets at the recommended dose. You should closely observe your response to the drug after you have taken Cetirizine Tablets if you are intending to drive, engage in potentially hazardous activities or operate machinery. You should not exceed the recommended dose.

3. How to take Cetirizine Tablets

Always take this medicine exactly as described in this leaflet or as your doctor, nurse or pharmacist has told you. Check with your doctor, nurse or pharmacist if you are not sure. The tablets need to be swallowed with a glass of liquid.

The tablet can be divided into 2 equal doses.

Children aged 6 to 12:

The recommended dose is 5 mg twice daily as half a tablet twice a day. Adults and adolescents aged 12 years and over:

The recommended dose is 10 mg once daily as one tablet daily. If the tablets make you feel drowsy or dizzy, taking half a tablet twice a day may be better than taking one tablet once a day.

Other form(s) of this medicine may be more suitable for children; ask your doctor, nurse or pharmacist.

Patients with renal impairment

Patients with moderate renal impairment are recommended to take 5 mg once daily.If you suffer from severe kidney disease, please contact your doctor, nurse or pharmacist who may adjust the dose accordingly.

If your child suffers from kidney disease, please contact your doctor, nurse or pharmacist who may adjust the dose according to your child’s needs.

If you feel that the effect of Cetirizine Tablets is too weak or too strong, please consult your doctor.

Duration of treatment

The duration of treatment depends on the type, duration and course of your complaints. Please ask your doctor, nurse or pharmacist for advice.

If you take more Cetirizine Tablets than you should

If you think you have taken an overdose of Cetirizine Tablets please inform your doctor. Your doctor will then decide what measures, if any, should be taken. After an overdose, the side effects described below may occur with increased intensity. Adverse effects such as confusion, diarrhoea, dizziness, tiredness, headache, ailing (feeling unwell), dilating of pupil, itching, restlessness, sedation, somnolence (sleepi-ness), stupor, abnormal rapid heart rate, tremors and urinary retention (difficulty in completely emptying the bladder) have been reported.

If you forget to take Cetirizine Tablets

Do not take a double dose to make up for a forgotten tablet. If you forget to take a tablet, you should take one as soon as you remember, but wait at least 24 hours before taking your next tablet.

If you stop taking Cetirizine Tablets

Rarely, pruritus (intense itching) and/or urticaria (hives) may return if you stop taking Cetirizine Tablets.

If you have any further questions on the use of this medicine, ask your doctor, nurse or pharmacist.

4. Possible Side effects

Like all medicines this medicine can cause side effects, although not everybody gets them.

The following side effects are rare or very rare, but you must stop taking the tablets and speak to your doctor straight away if you notice them:

  • Allergic reactions, including severe reactions and angioedema (serious allergic reaction which causes swelling of the face or throat).

These reactions may start soon after you first take the medicine, or it might start later.

Common side effects (may affect up to 1 in 10 patients)

  • Somnolence (sleepiness)
  • Dizziness,headache
  • Pharyngitis, rhinitis (in children)
  • Diarrhoea, nausea, dry mouth
  • Fatigue

Uncommon side effects (may affect up to 1 in 100 patients)

  • Agitation
  • Paraesthesia (abnormal feelings of the skin)
  • Abdominalpain
  • Pruritus (itchy skin),rash
  • Asthenia (extreme fatigue), malaise (feeling unwell)

Rare side effects (may affect up to 1 in 1,000 patients)

  • Allergic reactions, some severe (very rare)
  • Depression, hallucination, aggression, confusion,insomnia
  • Convulsions
  • Tachycardia (heart beating too fast)
  • Liver function abnormal
  • Urticaria (hives)
  • Oedema (swelling)
  • Weight increased

Very rare side effects (may affect up to 1 in 10,000 patients)

  • Thrombocytopenia (low levels of blood platelets)
  • Tics (habit spasm)
  • Syncope (fainting), dyskinesia (involuntary movements), dystonia (abnormal prolonged muscular contractions), tremor, dysgeusia (altered taste)
  • Blurred vision, accommodation disorder (difficulty focusing), oculogyration (eyes having uncontrolled circular movements)
  • Angioedema (serious allergic reaction which causes swelling of the face or throat), fixed drug eruption (drug allergy)
  • Abnormal elimination of urine (bed wetting, pain and/or difficulty passing water)

Not known frequency of side effects (frequency cannot be estimated from the available data)

  • Increased appetite
  • Suicidal ideation (recurring thoughts of or preoccupation with suicide),nightmare • Amnesia, memory impairment
  • Vertigo (sensation of rotation or movement)
  • Urinary retention (inability to completely empty the urinary bladder) • Pruritus (intense itching) and/or urticaria upon discontinuation
  • Hepatitis (inflammation of the liver)
  • Arthralgia (joint pain)

Reporting of side effects

If you get any side effects, talk to your doctor, nurse or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme at: www.mhra.gov.uk/yellow card or search for MHRA Yellow Card in the Google Play or Apple App Store.

By reporting side effects you can help provide more information on the safety of this medicine.

5. How to store Cetirizine Tablets

Keep this medicine out of the sight and reach of children. Do not use this medicine after the expiry date which is stated on the carton. The expiry date refers to the last day of that month.

This medicinal product does not require any special storage conditions. Do not throw away any medicines via waste water or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.

6. Contents of the pack and other information What Cetirizine Tablets contain

The active substance is cetirizine dihydrochloride. One film-coated tablet contains 10 mg cetirizine dihydrochloride.

The other ingredients are Croscarmellose sodium, Celloulose Microcrystalline, Silica Colloidal anhydrous, Magnesium stearate, Opadry white (03A28437) (Which contains Hypromellose and Titanium dioxide)

What Cetirizine Tablets look like and contents of the pack

Cetirizine Tablets are White to off-white, oval rectangular film-coated tablets with “10” on one side and score line on other side.

They are supplied in blister packs of 10X10s.

Marketing Authorisation Holder:

Farmak Pharmaceuticals UK Ltd, First Floor, 47 Queen Street, Hull, HU1 1UU, United Kingdom

Manufacturer

Ascenders consulting Services Limited, 110 Butterfield, Great Marlings, Luton, LU2 8DL, United Kingdom.

Marketing Authorisation Number:

PL 59209/0045

This leaflet was last revised: July 2026

140 mm Front side

140 mm Back Side

Size : 140 x 500 mm

Folding Size : 140 x 30 mm

About this document

Source: MHRA - Medicines and Healthcare products Regulatory Agency (products.mhra.gov.uk) · Marketing authorisation: PL 59209/0045

Last revision stated in the text: July 2026 · MHRA data as of 13 October 2026

Found a mistake? Tell us on the contact page.

The information on this site does not replace the advice of a doctor or pharmacist.

Facts about Cetirizine Dihydrochloride 10 mg film-coated tablets

Prescription needed? Depends on the pack size: general sale list (GSL) – also sold outside pharmacies, pharmacy medicine (P) – sold only in pharmacies, prescription-only medicine (POM)
Active substance Cetirizine
Strength 10 mg
Pharmaceutical form Oral tablet
White to off-white, oval rectangular film-coated tablets with “10” on one side and score line on other side.
The tablet can be divided into 2 equal doses.
How is it taken Oral
Excipients Croscarmellose Sodium, Cellulose Microcrystalline, Silica Colloidal anhydrous, Magnesium Stearate, Opadry white (03A28437) – (Which contains Hypromellose and Titanium dioxide), -
Is it available? Listed as available (NHS Dictionary of Medicines and Devices – not a record of current supplies)
Shelf life 24 months
Storage This medicinal product does not require any special storage conditions.
Drug group (ATC) Antihistamine for systemic use, piperazine derivatives
  1. R Respiratory system drugs
    1. R06 Antihistamines for systemic use
      1. R06A Antihistamines for systemic use
        1. R06AE Piperazine derivatives, systemic antihistamines
          1. R06AE07 cetirizine
Marketing authorisation PL 59209/0045 (first authorised 16 May 2025)
Marketing authorisation holder Farmak Pharmaceuticals UK Ltd
Codes BNF 03040100

Sources: the MHRA product information (products.mhra.gov.uk) and the NHS Dictionary of Medicines and Devices (dm+d), release 10.2.0 of 19 October 2026, NHS Business Services Authority. Contains public sector information licensed under the Open Government Licence v3.0.