RDX Suspension

Description

RDX Suspension is a triple‑action syrup combining a cough suppressant, an antihistamine, and a nasal decongestant for comprehensive relief of upper‑respiratory symptoms.

Composition (per 5 mL):

• Dextromethorphan HBr 10 mg – centrally suppresses the cough reflex

• Chlorpheniramine Maleate 2 mg – H1‑antihistamine that reduces histamine‑mediated symptoms

• Phenylephrine HCl 5 mg – α‑adrenergic decongestant that shrinks swollen nasal mucosa

Uses (Indications):

• Allergic cough

• Whooping cough

• Nasal congestion

Mechanism of Action:

• Dextromethorphan inhibits the medullary cough center to reduce dry, non‑productive cough.

• Chlorpheniramine Maleate blocks H₁ receptors, alleviating sneezing, itching, watery eyes, and rhinorrhea.

• Phenylephrine constricts nasal blood vessels, relieving congestion and improving airflow.

Dosage & Administration:

• Adults & children over 12 years: 5–10 mL orally, three to four times daily.

• Children 6–12 years: 2.5–5 mL orally, three times daily.

• Administration: Use a calibrated dosing spoon or syringe. Follow physician’s instructions.

Side Effects:

• Drowsiness or dizziness

• Dry mouth

• Nausea or abdominal discomfort

• Mild increase in blood pressure or heart rate (rare with phenylephrine)

Precautions:

• Avoid use in uncontrolled hypertension, cardiovascular disease, glaucoma, or prostatic hypertrophy.

• Use with caution in hyperthyroidism and diabetes.

• May potentiate CNS depressants—avoid concomitant alcohol or sedative medications.

• Not recommended during pregnancy or lactation without medical advice.