G-Antihistamine is indicated in the following indications-
Urticaria
Sensitivity reactions
Angioneurotic edema
Vasomotor rhinitis
Cough
Common cold
Motion sickness and
Other allergic conditions.
Sedating Anti-histamine
Chlorpheniramine is an alkylamine antihistamine. It is one of the most potent H1 blocking agents and is generally effective in relatively low doses. Chlorpheniramine is not so prone to produce drowsiness, readily absorbed from the gastro-intestinal tract, metabolised in the liver and excreted usually mainly as metabolised in the urine.
Adults: 4 mg 3-4 times daily.Children:
Up to 1( one) year: 1 mg twice daily
1-5 years: 1 mg 3-4 times daily
6-12 years: 2 mg 3-4 times daily or as directed by the physician
Chlorphenamine maleate has been reported to be incompatible with calcium chloride, kanamycin sulfate, noradrenaline acid tartrate, pentobarbital sodium, and meglumine adipiodone.
Chlorpheniramine is contraindicated in patients hypersensitive to this agent, in newborn or premature infants.
Chlorpheniramine is well-tolerated, but sometimes drowsiness, dizziness, muscular weakness, and gastrointestinal upset may occur.
Pregnancy Category B. Either animal-reproduction studies have not demonstrated a foetal risk but there are no controlled studies in pregnant women or animal-reproduction studies have shown an adverse effect (other than a decrease in fertility) that was not confirmed in controlled studies in women in the 1st trimester (and there is no evidence of a risk in later trimesters).
Chlorpheniramine should be used with caution in patients with glaucoma and prostatic hypertrophy. During therapy with chlorpheniramine, caution should be taken in driving vehicles and operating machinery.
CNS depression (including sedation, apnea, CV collapse), CNS stimulation (including insomnia, hallucination, tremors, convulsions), tinnitus, blurred vision, dizziness, ataxia, hypotension. Stimulation and atropine-like signs and symptoms (including dry mouth, fixed dilated pupils, flushing, hyperthermia, Gl symptoms) are more likely in children.
Store in a cool (Below 25°C temperature) and dry place protected from light. Keep out of the reach of children.
Sedating Anti-histamine
Chlorpheniramine Maleate is an alkylamine antihistamine. It is one of the most potent histamine H1-receptor blocking agents which is used as a potent antihistamine. This generally causes less sedation than promethazine. Chlorpheniramine Maleate exerts its effects by blocking H1-receptor competitively.
This drug should not be used in lactating mother and in pregnancy especially during the first trimester of pregnancy.
