Antihistamine tablets

Newer type antihistamine tablets (Cetirizine, Loratadine, Telfast) for the treatment of hay fever available to buy online from Dr Fox Pharmacy.

Start order

How to buy online

  1. Read medical information about hay fever treatment
  2. Answer medical questions to check for eligibility
  3. Reviewed by doctors - posted from UK pharmacy (tracked 24hr service)


Antihistamine tabletsQuantityCost
Loratadine 10mg30 tablets (1 month)£5.50
Loratadine 10mg60 tablets (2 months)£6.80
Loratadine 10mg90 tablets (3 months)£8.40
Cetirizine 10mg30 tablets (1 month)£5.50
Cetirizine 10mg60 tablets (2 months)£6.80
Cetirizine 10mg90 tablets (3 months)£8.20
Telfast 120mg (fexofenadine)30 tablets£12.60
Telfast 120mg (fexofenadine)60 tablets (2 months)£19.20
Telfast 120mg (fexofenadine)90 tablets (3 months)£25.70

Price match guaranteePrice match guarantee
Prescription issued online - small prescription fee per order.

Prescription fees

Dr Fox supplies medicine on prescription and charges a small prescription fee based on the order value of each prescription.

Prescriptions are issued by our doctors online and sent electronically to our pharmacy.

Order valuePrescription fee
up to £10£1.00
up to £20£2.00
up to £40£3.00
over £40£4.00

If you have your own private paper prescription please post to our pharmacy (details).

Dr Fox prices are 25%–50% lower than other UK online clinics.

Delivery charges

UK delivery only: £2.90 per consultation via Royal Mail 24 Signed For (1-3 working days with tracking).

Parcel forwarding services are not permitted. Use only UK home or work delivery address.

Returns and refunds - unwanted items can be returned within 14 working days for a full refund.

About antihistamine tablets

Dr Fox supplies cetirizine, loratadine, and Telfast antihistamine tablets on prescription.

Patients can order one, two, or three months of treatment, which is more than is available without a prescription. Prices are lower on prescription.

Loratadine and cetirizine are medical names for antihistamines. A number of drug companies make these antihistamines, which are sold under various brand names (e.g. Piriteze). Telfast is a brand name for the antihistamine fexofenadine.

Antihistamine tablets work by blocking the inflammatory effect of histamine.

How to take

  • Cetirizine 10mg tablets: take one daily, swallowed with water.
  • Loratadine 10mg tablets: take one daily, with or without food.
  • Telfast 120mg tablets: take one daily with water before a meal. Avoid antacids within 2 hours of tablets.

Antihistamine tablets can be combined with hay fever eye drops and nasal sprays.

Cautions and contraindications

People with significant liver or kidney disease or a history of irregular heart rhythms, epilepsy, or porphyria may not be able to take antihistamines and should consult with their regular doctor before treatment. For a detailed study about the effect on heart rhythms see Cardiovascular safety of antihistamines.

Antihistamines can cause drowsiness and affect ability to drive and operate machinery.

Cetirizine and loratadine contain lactose.

Skin testing for allergy

All antihistamines will interfere with allergy skin testing. It is recommended to stop taking antihistamine for at least 72 hours before any skin tests.

Pregnancy and breastfeeding

Pregnant or breastfeeding women should consult a doctor before taking antihistamines. The manufacturers recommend to avoid them.

Information on antihistamine use in pregnancy: BUMPS (Best Use of Medicines in Pregnancy) - Treatment of allergic rhinitis.

Side effects

All medicines can cause side effects although not everyone gets them.

Cetirizine, loratadine, and Telfast are all newer type antihistamines which are less sedative than older types of antihistamine. Older types of antihistamines have raised concerns of dementia risks.

Common side effects: Telfast is the only antihistamine supplied by Dr Fox which commonly causes side effects (in up to 1 in 10 people). These can include: headache, drowsiness, feeling sick (nausea), and dizziness.

Serious allergic reactions are rare and require immediate medical attention: swelling of the face, lips, tongue, or throat, flushing, chest tightness, and difficulty breathing.

Occasionally people experience a rash or itching on stopping cetirizine.

Information on other rarer side effects is found in the patient information leaflets.

Patient Information Leaflets

Illustration of patient leaflet from medicine packet

The Patient Information Leaflet (PIL) is the leaflet included in the pack with a medicine and must be read before taking the medicine. It is written for patients and gives information about taking or using a medicine.

Dr Tony Steele

Authored 17 August 2016 by Dr Tony Steele
MB ChB Sheffield University 1983. Former hospital doctor and GP.

Reviewed by Dr A. Wood, Dr B. Babor, Dr P. Hunt
Last reviewed 11 November 2020
Last updated 14 October 2021


Product reviews

Hay fever antihistamine tablets rated 4.76/5 in 17 product reviews

See over 35,000 service reviews of Dr Fox

Telfast 120mg

This was a very good anti-itch tablet.

19/08/2021 09:30
Anonymous Verified

Telfast 120mg

Good stuff, works really well for me

04/05/2021 17:11
Anonymous Verified

Telfast 120mg

Works for me every year

30/03/2021 08:24
I. Hampshire Verified

Telfast 120mg

Works for me, gets rid of runny nose, headaches and sneezing fast

17/09/2020 13:26
J. Carroll Verified

Telfast 120mg

Control my hayfever and no drowsiness like other meds

29/08/2020 10:39
Anonymous Verified

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The order process

Answer short medical questionnaire

Choose medication, register, and pay

Dr Fox issues prescription online

Pharmacy team post medication direct