Dyriton (Chlorpheniramine) 4mg/5ml Syrup

Dyriton (Chlorpheniramine) 4mg/5ml Syrup contains chlorpheniramine maleate, a first-generation antihistamine used to relieve symptoms of allergic conditions such as allergic rhinitis, hay fever, hives (urticaria), and itchy skin reactions. It helps ease sneezing, runny or itchy nose, watery and itchy eyes, and itching associated with allergies.

Dyriton (Chlorpheniramine) 4mg/5ml Syrup is available over the counter in Malaysia and can be purchased through DoctorOnCall without a prescription for symptomatic relief of mild allergic symptoms. Parents should follow the age-based dosing on the label and seek medical advice for young children or if symptoms persist.

Chlorpheniramine is a competitive H1-receptor antagonist that blocks the effects of histamine, a substance released by the body during allergic reactions that causes symptoms such as sneezing, itching, and a runny nose. By blocking these receptors, it reduces the intensity of allergic symptoms and also has mild sedative and drying effects.

Shake the bottle well before use and measure the dose using the measuring cup or spoon provided, never a household spoon. Give the syrup orally, with or without food, following the age-appropriate dose and frequency stated on the product label, and do not exceed the recommended dose within 24 hours.

Dosing is based on age: adults and children over 12 years typically take 5 to 10ml every 4 to 6 hours as needed, while children aged 6 to 12 years usually take a lower dose as stated on the label. Use in children under 6 years should only be under the guidance of a doctor or pharmacist, and the total daily dose should not be exceeded.

Dyriton (Chlorpheniramine) 4mg/5ml Syrup is generally stable for up to 24 months from the date of manufacture when unopened and stored correctly. Check the expiry date on the bottle or carton before each use, and follow the label’s guidance on how long to use the syrup after opening.

Store Dyriton (Chlorpheniramine) 4mg/5ml Syrup at room temperature, away from direct sunlight and excessive heat. Keep the bottle upright and tightly closed, do not freeze, and keep out of reach of children.

• Known hypersensitivity to chlorpheniramine or other antihistamines
• Newborn or premature infants
• Narrow-angle glaucoma
• Severe hypertension or cardiovascular disease
• Use of monoamine oxidase inhibitors (MAOIs) within the past 14 days
• Urinary retention or significant prostatic enlargement, unless advised by a doctor

• Increased sedation when taken with alcohol or other sedating medicines
• Additive anticholinergic effects with other antihistamines or anticholinergic drugs
• MAOIs may intensify and prolong the anticholinergic effects of chlorpheniramine
• Avoid alcohol while taking this syrup

• Use the measuring cup or spoon provided, not a household spoon, for accurate dosing
• Shake the bottle well before each use
• May cause drowsiness — avoid driving or operating machinery until you know how it affects you
• Avoid alcohol while using this medicine
• Consult a doctor if symptoms persist beyond 7 days or worsen

Chlorpheniramine is an older-generation antihistamine that is more likely to cause drowsiness compared with newer, non-sedating antihistamines, so it should be used with caution in the elderly and in those who need to remain alert. It should be used for the shortest period needed to control symptoms, and medical advice should be sought if allergy symptoms are severe or recurrent.