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Dextromethorphan, Phenylephrine Hcl, Cetirizine Hcl, Chlorpheniramine Maleate

Dextromethorphan, Phenylephrine Hcl, Cetirizine Hcl, Chlorpheniramine Maleate

Dextromethorphan, Phenylephrine HCl, Cetirizine HCl, and Chlorpheniramine Maleate are commonly used medications for treating cold and allergy symptoms. These include a combination of cough suppressants, antihistamines, and decongestants. Dextromethorphan is a cough suppressant that acts on the central nervous system to reduce coughing. Phenylephrine HCl is a decongestant that helps relieve nasal congestion. Cetirizine HCl and Chlorpheniramine Maleate are antihistamines used to relieve allergy symptoms such as sneezing, runny nose, and itchy eyes.


Dextromethorphan: Used to suppress coughs caused by common colds, flu, or other illnesses. Phenylephrine HCl: Used to relieve nasal congestion associated with colds, hay fever, or other respiratory allergies. Cetirizine HCl: An antihistamine used to relieve symptoms of allergies, such as sneezing, runny nose, and itchy or watery eyes. Chlorpheniramine Maleate: Another antihistamine used for allergy relief and to alleviate cold symptoms such as sneezing and runny nose.


Dextromethorphan: Typically taken orally in doses ranging from 10-20 mg every 4-6 hours as needed. Phenylephrine HCl: Often administered in doses of 10 mg every 4 hours as needed, without exceeding the maximum daily dosage. Cetirizine HCl: Usually taken once daily in doses of 10 mg for adults and children over 6 years old. Chlorpheniramine Maleate: Typically taken in doses of 4 mg every 4-6 hours as needed.


-Known hypersensitivity to any of the components. -Dextromethorphan should not be taken concurrently with monoamine oxidase inhibitors (MAOIs). -Phenylephrine HCl should be avoided in patients with severe hypertension, coronary artery disease, or certain other cardiovascular issues.

Special Precautions

-Use with caution in patients with hypertension, heart disease, glaucoma, diabetes, thyroid problems, or prostatic enlargement. -May cause drowsiness; caution is advised when operating heavy machinery or driving. -Pregnant or breastfeeding women should consult a healthcare provider before use.

Side Effects

-Dextromethorphan: Dizziness, drowsiness, nausea. -Phenylephrine HCl: Nervousness, headache, dizziness, or increased blood pressure. -Cetirizine HCl: Drowsiness, fatigue, dry mouth, or dizziness. -Chlorpheniramine Maleate: Drowsiness, dry mouth, dizziness, or blurred vision.

Drug Interactions

-Dextromethorphan can interact with MAOIs, SSRIs, and other serotonergic medications. -Phenylephrine HCl may interact with MAOIs, tricyclic antidepressants, and other antihypertensive drugs. -Cetirizine HCl can interact with other sedatives, alcohol, and CNS depressants. -Chlorpheniramine Maleate may interact with alcohol and other CNS depressants.

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