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Chlorphenamine 4mg - 336 Tablets

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Olivia Malone - Medical Content Writer
Olivia Malone
Medical Content Writer
28/06/2024
27/06/2026
James O'Loan - CEO & Prescribing Pharmacist
James O'Loan
CEO & Prescribing Pharmacist
2084549

Buy Chlorphenamine 4mg Tablets  

Chlorphenamine 4mg Tablets are used to treat hay fever symptoms and other allergies.

 

How Chlorphenamine 4mg Tablets work

Chlorphenamine 4mg Tablets contain the active ingredient chlorphenamine maleate, which belongs to a group of medicines called antihistamines. 

Antihistamines block the substance histamine, which the body creates when you come into contact with a substance you are allergic to. 

Chlorphenamine 4mg Tablets are a drowsy antihistamine.

 

Directions

Always take Chlorphenamine 4mg Tablets exactly as described in the patient information leaflet or as your doctor / Chemist4U pharmacist has told you. 

Swallow the tablets whole with water.

Children aged between 6-12 years old: 2mg/half a tablet should be taken every 4-6 hours. No more than 12mg should be taken daily.

Children over 12 years old and adults: 4mg/1 tablet should be taken every 4-6 hours. No more than 24mg should be taken daily.

 

Side effects

Like all medicines, Chlorphenamine 4mg Tablets may cause side effects in some people, but these won’t affect everybody. Common side effects include: 

 

  • Drowsiness
  • Tiredness
  • Blurred vision 
  • Dizziness
  • Headaches 
  • Difficulty concentrating 
  • Lack of coordination
  • Nausea
  • Vomiting
  • Diarrhoea 

 

If you experience any side effects, including any not included in the patient information leaflet, you can report them using the MHRA Yellow Card Scheme.

 

Serious side effects

Seek emergency medical attention if you notice any signs of a severe allergic reaction, symptoms of which include swelling of the face and throat, skin rash, breathing difficulties and/or loss of consciousness. 

 

Warnings

Chlorphenamine 4mg Tablets may be unsuitable for certain people. Do not take these tablets if you are allergic to any of the ingredients or if:

 

  • You have brain damage 
  • You have epilepsy 

 

Talk to your doctor or Chemist4U pharmacist before taking this medicine if: 

 

  • You have raised pressure inside your eyes, including glaucoma 
  • You have an enlarged prostate
  • You have an overactive thyroid
  • You have very high blood pressure 
  • You have liver disease
  • You have heart disease 
  • You have asthma, bronchitis or bronchiectasis 

 

These tablets contain lactose. If you are intolerant to certain sugars, talk to your doctor before taking this medicine. 

Chlorphenamine 4mg Tablets also contain the colouring agent Sunset Yellow (E110). This colouring agent may cause allergic reactions. 

Do not give these tablets to someone who is in a coma.

 

Using/taking other medicines

If you are taking or have recently taken any medication, including medication obtained without a prescription, talk to your GP or pharmacist before taking this product. 

Do not take Chlorphenamine 4mg Tablets if you have taken monoamine oxidase inhibitors (MAOIs) in the last 14 days.

You must tell your healthcare provider if you are taking the following medication:

 

  • Phenytoin for epilepsy 
  • Medication used to treat anxiety 
  • Sedatives 
  • Anticholinergic drugs e.g. atropine or hyoscine 
  • Betahistine used to treat vertigo and hearing disturbances 
  • Lopinavir

 

Age restrictions 

This product is not suitable for children under 6 years old.

 

Pregnancy and breastfeeding

If you are pregnant or breastfeeding, think you may be pregnant or are planning to have a baby, you must ask your doctor or Chemist4U pharmacist for advice before taking any new medicine. 

 

Alcohol

Do not drink alcohol whilst you are taking this medication, as it may increase the sedative effects of alcohol.

 

Driving and operating machinery 

Chlorphenamine 4mg Tablets may cause drowsiness and blurred vision. If you are affected, do not drive or operate machinery until you feel safe enough to do so. 

 

Storage information

Store below 25°C in a cool, dry place out of sight and reach of children. Do not use after the expiry date, referring to the last day of the month stated on the packaging. Do not throw away any medicines via wastewater or household waste.

 

Important information

This product is a medicine; make sure to speak to your doctor or Chemist4U pharmacist before taking this product if you have an underlying medical problem or are taking any other medicine or complementary therapy. If your symptoms get worse or continue after taking this product, contact us or your doctor. For medical services in your area, please refer to https://www.nhs.uk

If you are pregnant, trying to become pregnant, or breastfeeding, speak to your doctor or Chemist4U pharmacist before taking this product. If you suffer from any allergies, ask your doctor or Chemist4U pharmacist if this medicine is right for you.

Store all medicines out of sight and reach of children.

Please read the included leaflet carefully before taking this product.

Please contact your GP if appropriate regarding this product.

 

Chlorphenamine 4mg - 336 Tablets Reviews

white-star white-star white-star white-star white-star
By Graham Wickens,
March 10, 2026
Exactly the same as much more expensive branded product.
white-star white-star white-star white-star white-star
By Meeby,
March 03, 2026
Good value for money
white-star white-star white-star white-star white-star
By Carole ,
March 03, 2026
Works for me....
white-star white-star white-star white-star white-star
By Mr M,
February 17, 2026
Fast and efficient service at good price.
white-star white-star white-star white-star white-star
By Ian,
February 10, 2026
As it says on the packet

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