Afrab-Chem Ltd
No. 22, Abimbola Street, Isolo Industrial Estate, Isolo, P.O. Box 1647, Lagos, Nigeria.
Tel: 234-1-2700057
Fax: 234-1-4520328

Brand Name



Afrab Chem Ltd, 22 Abimbola Street, Isolo Industrial Estate, Isolo, Lagos

Therapeutic Class

Antihistamines, Systemic

Dosage Form, Composition & NAFDAC Registration Number (NRN)

Tablet (NRN:04-1288): Chlorpheniramine maleate BP 4 mg.

How to identify the Product: Light pink scored tablet marked with the marker's symbol.

Pack size: 1000's in HDPE Plastic.


Syrup (NRN:04-1955): Chlorpheniramine maleate BP 2 mg per 5 mL.

Pack size: 60 mL plastic bottle.

allergin syrup


Allergin is an Alkylamine H1 receptor antagonist. It diminishes the main action of histamine in the body by competitive reversible blockade of histamine receptor sites on tissues. It also possesses anticholinergic and sedative activity. It prevents released histamines from dilating capillaries, thus preventing oedema of the respiratory mucosa.


Symptomatic control of all allergic conditions responsive to antihistamines including hay fever, vasomotor rhinitis, urticaria, angio-neurotic oedema, food allergy, drug and serum reactions, pruritus, and insect bites.


Allergin should not be given to neonates or premature infants. It should be avoided in pregnancy. It is also contraindicated during attack of asthma.


It should be used with care in conditions such as narrow and acute glaucoma, urinary retention and prostate hypertrophy.

Avoid use of Allergin with other products containing Chlorpheniramine maleate.


Allergin enhances sedative effect of CNS depressants including alcohol, barbiturates, hypnotics, narcotic analgesics, sedatives and tranquilizers.

Adverse Effects

Drowsiness, nausea and sedation.

Dosage & Administration

Allergin is administered orally:

   Age   Dose   Duration 
 Syrup  Up to 1 year  1 mg (2.5 mL)  2 times daily
   1-5 years(s)  1-2 mg (2.5-5 mL)  3 times daily
   6-12years  2-4 mg (5-10 mL)  3-4 times daily
 Tablet  Adult  4 mg (1 tablet)  3-4 times daily
 Or as directed by the physician

Storage/Handling Recommendations

Keep in a cool dry place and away from the reach of children.

Review Date

2017-09-30 03:36:33