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Dextromethorphan

Generic Name: dextromethorphan (dex troe meth OR fan)
Brand Names: Babee Cof, Benylin DM Pediatric, Buckleys Mixture, Creomulsion, Creo-Terpin, DayQuil Cough, Delsym, Delsym 12 Hour Cough Relief, Elixsure Cough, Robafen Cough Liquidgels, Robitussin CoughGels, Scot-Tussin Diabetic, Silphen DM, St. Joseph Cough Suppressant, Sucrets DM Cough, Theraflu Thin Strips Cough, Triaminic Long Acting Cough
Dextromethorphan is a cough suppressant used to treat coughing. Learn about side effects, interactions and indications.
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Drug Information:
Dextromethorphan is a cough suppressant. It affects the signals in the brain that trigger cough reflex. Dextromethorphan is used to treat a cough. It is available over-the-counter alone and is also present in many over-the-counter and prescription combination medications. Dextromethorphan will not treat a cough that is caused by smoking, asthma, or emphysema. Do not give dextromethorphan to a child younger than 4 years old. Always ask a doctor before giving a cough or cold medicine to a child. Death can occur from the misuse of cough and cold medicines in very young children. Learn more

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Dextromethorphan Side Effects

For the Consumer

Applies to dextromethorphan: oral capsule liquid filled, oral elixir, oral liquid, oral solution, oral suspension extended release, oral syrup

Along with its needed effects, dextromethorphan may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor as soon as possible if any of the following side effects occur while taking dextromethorphan:

Symptoms of overdose

  • Blurred vision
  • confusion
  • difficulty in urination
  • drowsiness or dizziness
  • nausea or vomiting (severe)
  • shakiness and unsteady walk
  • slowed breathing
  • unusual excitement, nervousness, restlessness, or irritability (severe)

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

Less common or rare

  • Confusion
  • constipation
  • dizziness (mild)
  • drowsiness (mild)
  • headache
  • nausea or vomiting
  • stomach pain

For Healthcare Professionals

Applies to dextromethorphan: compounding powder, oral capsule, oral disintegrating strip, oral drops, oral liquid, oral lozenge, oral solution, oral suspension extended release, oral syrup, oral tablet chewable

General

Adverse effects have included gastrointestinal disturbances such as stomach upset and diarrhea.

Nervous system

Frequency not reported: Drowsiness, dizziness, convulsions

Respiratory

Frequency not reported: Respiratory depression

Gastrointestinal

Frequency not reported: Vomiting, nausea, diarrhea, abdominal pain, gastrointestinal disturbance

Hypersensitivity

Rare (less than 0.1%): Fixed-drug eruptions

Psychiatric

Cases of abuse have been reported.

Frequency not reported: Mental confusion, excitation, insomnia, abuse

Dermatologic

Frequency not reported: Rash, angioedema, pruritus, urticaria

Editorial References and Review

Medically reviewed by USARx EDITORIAL TEAM Last updated on 1/1/2020.

Source: Drugs.com Dextromethorphan (www.drugs.com/dextromethorphan.html).

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