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Levocetirizine Dihydrochloride Tablets

From £10.99 See Prices

Levocetirizine is a non-drowsy antihistamine that provides relief for symptoms of allergic rhinits (hay fever) and hives. It is also available in a branded version under the name Xyzal.

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Levocetirizine PRICES

Medicine x30 Tablets x60 Tablets x90 Tablets x180 Tablets
Levocetirizine 5mg Tablets £10.99 £18.49 £25.99 £39.99

About levocetirizine

Key points

  • Works within 1 hour
  • Take one tablet daily
  • Low side-effect profile


How to buy levocetirizine

You can buy levocetirizine online from Chemist Click. You cannot buy levocetirizine over the counter in the UK, however, after completing an online consultation, one of our pharmacists will issue a prescription after reviewing your answers. We offer next day delivery options.

What is levocetirizine?

Levocetirizine is an antihistamine which helps to alleviate symptoms of hay fever (allergic rhinitis) and allergies. It works by blocking the release of histamine, which is the chemical released when the body comes into contact with an allergen. Histamine causes the body to react by causing symptoms such as sneezing, watery eyes and nasal congestion. By blocking its action, levocetirizine can reduce these symptoms.

It takes around one hour for levocetirizine to work. However, it may take a few days of consistent use to experience the full effect of treatment.

Levocetirizine is the generic version of the branded medication, Xyzal.

Levocetirizine uses

Levocetirizine is used to treat symptoms of hay fever and allergies such as:

  • Sneezing
  • Nasal congestion
  • Itchy nose
  • Itchy and watery eyes
  • Itchy skin

Levocetirizine dosage instructions

Take one tablet daily.

You can take levocetirizine for as long as you need to.

Do not use more than one tablet (5mg) daily. Only take levocetirizine once a day.

Levocetirizine is also available as a syrup. The dosage instructions will vary for this product.

Levocetirizine ingredients

Active ingredients: Levocetirizine dihydrochloride 5mg

Inactive ingredients: Lactose monohydrate, colloidal anhydrous silica, microcrystalline cellulose, magnesium stearate, macrogol 400, hypromellose (E464), titanium dioxide (E171).

Whilst the active ingredient will remain the same, different manufacturers may use alternative inactive ingredients. Read the patient information leaflet supplied with your tablet, for a full list of ingredients.

Levocetirizine side effects

Like all medication, there is the possibility of side effects, although not everyone gets them.

Side effects of levocetirizine are:

Common: Affecting up to 10% of users

  • Headache
  • Dry mouth
  • Fatigue


Uncommon: Affecting up to 1% of users:

  • Stomach pain
  • Extreme tiredness


If you experience any of the following, seek urgent medical assistance:

  • Signs of allergy including swelling of the lips, face, mouth, throat, or eyes
  • Difficulty breathing


You should report all side effects to your doctor or pharmacist.

Levocetirizine warnings

Do not use levocetirizine if:

  • You are allergic to levocetirizine or to other antihistamines (such as Cetirizine hydroxyzine) or any of the other ingredients of this medicine, which can be found in the patient information leaflet
  • You suffer from severe kidney failure
  • You have a rare inherited blood disorder (porphyria)
  • You suffer from epilepsy


You may still be able to use levocetirizine, but you should check with your doctor or pharmacist beforehand. If you are taking any medication, you should also check with your doctor or pharmacist.

Levocetirizine and pregnant

You should not use levocetirizine if you are pregnant, unless your doctor has advised you to. Although there is no information to suggest that it will harm the baby, there is lack of information surrounding this.

Levocetirizine and breastfeeding

Small amounts of levocetirizine are present in breastmilk. The amounts are not though to be harmful to the baby. However, you should avoid using levocetirizine if you are breastfeeding, unless your doctor has advised you to use treatment.

Levocetirizine interactions

Levocetirizine interacts with:

  • Isocarboxazid
  • Phenelzine
  • Tranylcypromine
  • Betahistine


You should not use levocetirizine if you are taking any of the medication listed above.

Levocetirizine alternatives

Levocetirizine vs cetirizine

  • Levocetirizine and cetirizine have the same molecular formula, but are structurally different
  • Levocetirizine has been shown to be more effective than cetirizine according to research
  • Levocetirizine is less sedating than cetirizine
  • Levocetirizine is more expensive than cetirizine


Levocetirizine vs fexofenadine

According to research:

  • Fexofenadine is faster acting compared to levocetirizine
  • Levocetirizine lasts longer than fexofenadine
  • Levocetirizine is more sedating than fexofenadine


  1. British National Formulary. (n.d.). Levocetirizine Hydrochloride. Retrieved February 21, 2024, from

  2. (n.d.). Levocetirizine. Retrieved February 21, 2024, from

Yes, levocetirizine is available on the NHS. However, most GP surgeries will recommend that patients buy hay fever treatments from a pharmacy.

The active ingredient is the same. Any differences will be in the inactive ingredients.

Most people do not feel drowsy; however, it is possible, and a listed side effect.

Moderate consumption of alcohol is safe, however, excess alcohol consumption can intensify drowsiness.

When the allergen is not present, you can stop taking levocetirizine.

Taking more than one tablet will not make it more effective. If you take more than you should, you may experience the following symptoms: confusion, diarrhoea, dizziness, fatigue, headache, feeling unwell, dilation of the pupils, itching, restlessness, drowsiness, sleepiness, fast heartbeat, shaking, and difficulty passing urine. Contact your doctor or pharmacist immediately.

HOW TO USE Levocetirizine Dihydrochloride Tablets

Levocetirizine tablets should be taken once a day, with or without food. Take at the same time daily. 

Product Reviews For Levocetirizine Dihydrochloride Tablets

Summary For Levocetirizine Dihydrochloride Tablets

Medication Class Antihistamine
Mechanism of action Blocks histamine (chemical which causes allergy symptoms)
Active ingredient Levocetirizine Dihydrochloride
Strength 5mg
Effective within 60 minutes
Dosage Instructions Take one tablet daily
Manufacturer Glenmark, Mylan, Bristol
Use with alcohol In moderation


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