Chlorpheniramine is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.

Chlorpheniramine is an antihistamine that reduces the natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.

Pseudoephedrine is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose).

Chlorpheniramine and pseudoephedrine is a combination medicine used to treat symptoms of the common cold or seasonal allergies, including sneezing, runny or stuffy nose, and itchy, watery eyes.

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  • Allerest Maximum Strength, Dicel, LoHist-D, Neutrahist Drops, Sudogest Cold & Allergy, SudoGest Sinus & Allergy, Triaminic Cold and Allergy
  • Constipation; diarrhea; dizziness; drowsiness; excitability; headache; loss of appetite; nausea; nervousness or anxiety; trouble sleeping; upset stomach; vomiting; weakness.

    Seek medical attention right away if any of these SEVERE side effects occur while taking chlorpheniramine / pseudoephedrine:
    Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating or inability to urinate; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; tremor; trouble sleeping; vision changes.
  • (oral syrup, oral liquid, oral tablet, oral tablet, chewable, oral capsule, extended release, oral tablet, extended release, oral suspension, oral suspension, extended release, oral tablet, chewable, extended release)