Antihistaminic BP Standard Powder Chlorpheniramine Maleate CAS
White crystalline powder
130-135 º C
379 º C at 760 mmHg
183 º C
1-5 g/100 mL at 21 º C
An antagonist of the histamine H1-receptor
Chlorpheniramine is an antihistamine used to relieve symptoms of
allergy, hay fever, and the common cold. These symptoms include
rash, watery eyes, itchy eyes/nose/throat/skin, cough, runny nose,
This medication works by blocking a certain natural substance
(histamine) that your body makes during an allergic reaction. By
blocking another natural substance made by your body
(acetylcholine), it helps dry up some body fluids to relieve
symptoms such as watery eyes and runny nose.
Cough-and-cold products have not been shown to be safe or effective
in children younger than 6 years. Therefore, do not use this
product to treat cold symptoms in children younger than 6 years
unless specifically directed by the doctor. Some products are not
recommended for use in children younger than 12 years. Ask your
doctor or pharmacist for more details about using your product
These products do not cure or shorten the length of the common cold
and may cause serious side effects. To decrease the risk for
serious side effects, carefully follow all dosage directions. Do
not use this product to make a child sleepy. Do not give other
cough-and-cold medication that might contain the same or similar
ingredients. Ask the doctor or pharmacist about other ways to
relieve cough and cold symptoms.
The anti-histamine effect of the goods more than diphenhydramine
and promethazine, the amount of small, mild side effects. For
urticaria, vasodilatous rhinitis, colds, asthma, rhinitis, contact
dermatitis, but also for drugs and food caused by allergies, insect
bites and halo and so on.
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