Brompheniramine 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.

Dextromethorphan is a cough suppressant. It affects the signals in the brain that trigger cough reflex.

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

Brompheniramine, dextromethorphan, and pseudoephedrine is a combination medicine used to treat cough, runny or stuffy nose, sneezing, itching, and watery eyes caused by allergies, the common cold, or the flu.

This medicine will not treat a cough that is caused by smoking, asthma, or emphysema.

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  • Allanhist PDX Drops, Anaplex DM, Andehist DM NR Syrup, Bromaline DM, Bromfed DM, Bromhist PDX, Bromplex DM, Brotapp-DM, BroveX PSE DM, Dimetane DX, Neo DM, Q-Tapp DM, Resperal-DM Drops, Robitussin Allergy & Cough
  • Blurred vision; constipation; diarrhea; dizziness; drowsiness; dry mouth, nose, or throat; excitability; headache; increased sweating; 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 brompheniramine / dextromethorphan / pseudoephedrine:
    Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); chest tightness; difficulty urinating or inability to urinate; fast or irregular heartbeat; fever, chills, or sore throat; flushing or redness of the face; hallucinations; mental or mood changes; numbness or tingling; seizures; severe dizziness, drowsiness, lightheadedness, or headache; severe dryness of mouth, nose, and throat; shortness of breath; tremor; trouble sleeping; unusual bruising or bleeding; vision changes.
  • (oral syrup, oral liquid, oral suspension, extended release, oral drops, oral tablet)