Chlorphenamine warnings

If you plan to have any tests in order to diagnose your allergies then you should stop taking Chlorphenamine tablets at least 2 days before the tests. Because Chlorphenamine treats the symptoms of allergies it can interfere with the efficacy of the tests.

Chlorphenamine and other medicines

Chlorphenamine should not be used if you have taken any monoamine oxidase inhibitors (MAOIs) in the last 14 days. MAOIs are a kind of antidepressant, some examples are:

• Phenelzine
• Tranylcypromine
• Isocarboxazid

The risk of experiencing certain side effects including dry mouth, blurred vision, and constipation, can be increased if using Chlorphenamine at the same time as antimuscarinic medicines such as:

• Antimuscarinic medicines for Parkinson’s symptoms such as procyclidine, orphenadrine, and trihexyphenidyl
• Antimuscarinic medicines for urinary incontinence such as oxybutynin, flavoxate, tolterodine, propiverine, and trospium
• Some antipsychotics such as chlorpromazine and clozapine
• Antispasmodics such as hyoscine and atropine
• Tricyclic antidepressants such as amitriptyline, imipramine

Chlorphenamine and driving

Chlorphenamine can cause drowsiness. If you experience drowsiness while taking Chlorphenamine then avoid driving or operating machinery.

Chlorphenamine and alcohol

Alcohol should also be avoided while taking Chlorphenamine as this can increase your chances of developing unwanted side effects such as drowsiness.

Before taking Chlorphenamine please take the time to read the Patient Information Leaflet in full.

How to take chlorphenamine

Adults, the elderly and children over the age of 12 years: Take 1 Chlorphenamine tablet or 10ml of oral solution every 4 -6 hours, taking a maximum of 6 tablets or 10ml spoons of solution in a 24 hour period. The elderly should avoid taking more than 3 tablets per day as they will increase their risk of developing potential side effects.

Children between the ages of 6 and 12: Take half a Chlorphenamine tablet or 5ml of oral solution every 4-6 hours, taking no more than 3 tablets or 6, 5 ml spoons of solution in a 24 hour time period.

Children 2 - 6 years: Do not give tablets to children under 6 years. Take 2.5 ml of oral solution every 4 - 6 hours, taking no more than 6 spoonfuls in 24 hours.

Children 1 - 2 years: Take 2.5 ml of oral solution twice daily, taking no more than two spoonfuls in 24 hours.

If, after using this treatment, you still experience the symptoms associated with allergies, you should seek advice from your doctor or pharmacist.

Chlorphenamine ingredients

Chlorphenamine Tablets

Each tablet contains the active ingredient: 4 mg of Chlorphenamine.

Each tablet contains the inactive ingredients: Lactose, maize starch, yellow iron oxide (E 172), magnesium stearate and water.

Chlorphenamine Oral Solution

Every 5 ml of syrup contains the active ingredient: 2 mg of Chlorphenamine

Every 5 ml of syrup contains the inactive ingredients: Sucrose, glycerol, ethanol, tingle flavour, peppermint oil, water and, methyl, ethyl and propyl hydroxybenzoates (E 218, E 214 and E 216).

Chlorphenamine side effects

Taking Chlorphenamine can cause some people to experience unwanted side effects. If you are worried about any side effects or they do not improve once you have stopped taking this medication, speak to a pharmacist or doctor for advice.

The most common side effects include:

• Drowsiness
• Dizziness
• Headaches
• blurred vision
• Feeling sick
• Loss of appetite

If you experience any severe side effects that cause swelling of the face or you are having difficulty breathing you need to seek immediate medical attention either by calling 999 or attending your nearest emergency department.