Key information summary
Efficacy & effects
This medication is used to relieve symptoms caused by pollen allergy rhinitis, urticaria, pruritic skin conditions (eczema, dermatitis, drug rash), allergic rhinitis, vasomotor rhinitis, and colds, including sneezing, runny nose, cough, and vasomotor edema.
Dosage
As chlorpheniramine maleate, take 2–6 mg orally, 2–4 times a day. Do not exceed 24 mg in one day.
Precautions
This medication should not be taken by individuals who have had an allergic reaction to specific drugs or compounds. Patients with glaucoma, which increases eye pressure, or those with urinary retention due to prostate enlargement should also avoid it. Infants, newborns, and individuals taking certain antidepressants known as MAO inhibitors must refrain from use. Drowsiness may occur while taking this medication, so driving or operating dangerous machinery should be avoided. Children under the age of 3, pregnant or breastfeeding women, and elderly individuals must consult a physician or pharmacist before taking this medication. People with high eye pressure, overactive thyroid function, or gastrointestinal issues should be cautious. Individuals with heart or blood pressure conditions, as well as those with neurological disorders such as asthma or epilepsy, should consult a specialist. If difficulty breathing, chest discomfort, hypotension symptoms, seizures, severe skin rashes, or allergic reactions occur after taking the medication, discontinue use immediately and consult a healthcare provider. Additionally, various side effects may occur, including mental confusion, insomnia, dizziness, headache, gastrointestinal symptoms such as indigestion or vomiting, abdominal pain, urinary difficulties, heart rhythm abnormalities, respiratory issues, blood abnormalities, and liver dysfunction, so caution is advised. When taking this medication, be careful with alcohol or central nervous system depressants, as they may increase drowsiness. Furthermore, this medication can interfere with the metabolism of other drugs, leading to toxicity, so it should be taken under professional guidance. In the event of an overdose, severe toxicity symptoms may arise, and emergency measures such as inducing vomiting or gastric lavage may be necessary. Finally, this medication should be stored in a safe place out of the reach of children, kept in its original container to prevent misuse or deterioration of quality.
Side effects
Urticaria, severe swelling (edema), chest tightness, difficulty breathing, seizures, confusion, aplastic anemia, agranulocytosis, rash, exfoliative dermatitis, cyanosis, respiratory distress, hypotension, hepatitis, jaundice.
Interactions
This medication should not be taken with MAO inhibitors. Consult a physician or pharmacist if taken with central nervous system depressants and phenytoin.