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Marquis asked in HealthOther - Health · 4 years ago

What are some side effects of dextromethorphan?

1 Answer

  • 4 years ago
    Favorite Answer

    Not all side effects for dextromethorphan may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA.

    For the Consumer

    Applies to dextromethorphan: oral capsule, oral capsule liquid filled, oral elixir, oral liquid, oral lozenge/troche, oral solution, oral suspension, oral suspension extended release, oral syrup, oral tablet

    In addition to its needed effects, some unwanted effects may be caused by dextromethorphan. In the event that any of these side effects do occur, they may require medical attention.

    If any of the following side effects occur while taking dextromethorphan, check with your doctor or nurse as soon as possible:

    Symptoms of overdose

    Blurred vision


    difficulty in urination

    drowsiness or dizziness

    nausea or vomiting (severe)

    shakiness and unsteady walk

    slowed breathing

    unusual excitement, nervousness, restlessness, or irritability (severe)

    Some of the side effects that can occur with dextromethorphan may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:

    Less common or rare



    dizziness (mild)

    drowsiness (mild)


    nausea or vomiting

    stomach pain

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