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Name/scientific name

CHLORPHENIRAMINE

Self-financed or subsidized by the Hospital Authority

Hospital Authority Drug Formulary

Indications

Allergic rhinitis, colds, urticaria, itchy skin, contact dermatitis, eye allergies

body system

respiratory system

type 

Antihistamines and emergency allergies

category

Pagination

Drug introduction

Chlorpheniramine is a commonly used antihistamine drug used to relieve allergy symptoms such as nasal congestion, runny nose, and sneezing. It can also relieve itchy skin caused by allergies. Chlorpheniramine can be taken orally or injected, but is usually taken as an oral tablet or liquid. In Hong Kong, chlorpheniramine is a common over-the-counter drug, but it still needs to be used under the guidance of a pharmacist to ensure safety and effectiveness. When taking chlorpheniramine, follow your doctor's or pharmacist's advice and avoid overdose. Possible side effects include drowsiness, dizziness, and dry mouth. If you develop serious side effects, such as rapid heartbeat or difficulty breathing, seek medical attention immediately. If you are pregnant or nursing, or have another medical condition, talk to your doctor before using chlorpheniramine.

Dosage

Directions for use: Take this medication after a meal to reduce stomach upset. Avoid taking it with alcoholic beverages as they may increase drowsiness. While taking this product, avoid activities that require high levels of alertness, such as driving or operating machinery.

Dosage Guidelines: Adults can take 4 mg to 8 mg each time, up to 3 times daily. The starting dose is 4 mg and can be gradually adjusted to 8 mg if necessary. Dosage for children should be based on age and weight, consult your doctor to determine appropriate dosage. Typically, children's doses are lower than those for adults and need to be adjusted with caution. Take your medicine as recommended by your doctor or pharmacist, and do not increase or decrease the dose on your own.

side effect

Chlorpheniramine is an antihistamine drug used to treat allergic reactions such as coughs and runny noses. Its side effects include dry throat, sore throat, dizziness, laryngeal edema and rapid heartbeat. Some people may also feel tired or nauseous. Long-term consumption may cause dependence and withdrawal symptoms. If you develop serious side effects, such as difficulty breathing or skin irritation, seek medical advice immediately. It is recommended not to drink alcohol or operate machines as these side effects may affect your alertness and reaction ability. If you have any questions, you should ask your doctor or pharmacist.

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Drug name: Chlorpheniramine

Chlorpheniramine is a commonly used anti-allergy drug used to relieve symptoms caused by allergies, such as sneezing, runny nose, and itchy eyes. However, chlorpheniramine has some contraindications, and patients should pay special attention when using it:

1. Patients allergic to chlorpheniramine: If you are allergic to chlorpheniramine or similar antihistamine drugs, you should avoid using chlorpheniramine to avoid causing a more serious allergic reaction.

2. Pregnant and lactating women: Pregnant and lactating women should use chlorpheniramine under the guidance of a doctor, because the drug may have adverse effects on the fetus or infant.

3. Adolescents and the elderly: Adolescents and the elderly should be cautious when using chlorpheniramine because they may have an overreaction or adverse reaction to the effects of the drug.

4. Patients with severe hepatic and renal insufficiency: Patients with severe hepatic and renal insufficiency should avoid using chlorpheniramine, because drug metabolism and excretion may be impaired, increasing the burden on the body.

In short, you should read the instructions carefully before using chlorpheniramine and use it under the advice of your doctor or pharmacist to ensure safe and effective treatment of allergy symptoms.

Precautions

Chlorpheniramine is an antihistamine drug primarily used to treat allergy symptoms such as nasal congestion, sneezing, and runny nose. When using, please note that it may cause drowsiness and darkness. It is not suitable to drive or operate machinery. Follow your doctor or pharmacist's advice and do not exceed the recommended dosage.

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  • Medication grading for pregnant women

    Chlorpheniramine should be used with caution during pregnancy. This medication is a beta-antihistamine and may pose a potential risk to the fetus. It is recommended that pregnant women seek medical advice before using chlorpheniramine. A doctor will evaluate a pregnant woman's condition and the risks of the drug to determine if it can be used safely. Use of chlorpheniramine during pregnancy may cause abnormal fetal development or other adverse effects. If pregnancy is suspected or planned, the patient should inform the doctor immediately so that appropriate measures can be taken. During pregnancy, follow your doctor's advice to avoid unnecessary risks and ensure the safety of your fetus.

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