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Dextromethorphan Capsules

What is this medication?

DEXTROMETHORPHAN (dex troe meth OR fan) is used to relieve cough. It works by calming your cough reflex. It belongs to a group of medications called cough suppressants.

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This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.

COMMON BRAND NAME(S): DexaloneRobafen CoughRobitussin CoughRobitussin CoughGelsRobitussin Lingering ColdRobitussin Lingering Cold Long-Acting Cough

What should I tell my care team before I take this medication?

They need to know if you have any of these conditions:

  • Asthma
  • Emphysema
  • Large amount of mucus
  • Liver disease
  • Tobacco use
  • An unusual or allergic reaction to dextromethorphanbromidesother medicationsfoodsdyesor preservatives
  • Pregnant or trying to get pregnant
  • Breastfeeding

How should I use this medication?

Take this medication by mouth with a glass of water. Follow the directions on the prescription label. Take your medication at regular intervals. Do not take it more often than directed.

Talk to your care team about the use of this medication in children. While this medication may be prescribed for children as young as 12 years old for selected conditionsprecautions do apply.

Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.

NOTE: This medicine is only for you. Do not share this medicine with others.

What if I miss a dose?

If you miss a dosetake it as soon as you can. If it is almost time for your next dosetake only that dose. Do not take double or extra doses.

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What may interact with this medication?

Do not take this medication with any of the following:

  • MAOIssuch as CarbexEldeprylMarplanNardiland Parnate

This medication may also interact with the following:

  • Medications for depressionanxietyor mental health conditions
  • Other medications for allergies or cold
  • Procarbazine

This list may not describe all possible interactions. Give your health care provider a list of all the medicinesherbsnon-prescription drugsor dietary supplements you use. Also tell them if you smokedrink alcoholor use illegal drugs. Some items may interact with your medicine.

What should I watch for while using this medication?

Do not treat yourself for a cough for more than 1 week without consulting your care team. If you have a high feverskin rashlasting headacheor sore throatsee your care team.

This medication may affect your coordinationreaction timeor judgment. Do not drive or operate machinery until you know how this medication affects you. Sit up or stand slowly to reduce the risk of dizzy or fainting spells. Drinking alcohol with this medication can increase the risk of these side effects.

What side effects may I notice from receiving this medication?

Side effects that you should report to your care team as soon as possible:

  • Allergic reactions—skin rashitchinghivesswelling of the facelipstongueor throat

Side effects that usually do not require medical attention (report to your care team if they continue or are bothersome):

  • Dizziness
  • Drowsiness
  • Fatigue

This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Where should I keep my medication?

Keep out of the reach of children.

Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F) unless otherwise directed. Avoid heat over 40 degrees C (104 degrees F). Protect from light. Throw away any unused medication after the expiration date.

NOTE: This sheet is a summary. It may not cover all possible information. If you have questions about this medicinetalk to your doctorpharmacistor health care provider.

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Note: Introduction and Additional Common Questions written and medically approved by Cleveland Clinic professionals.

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