Brand Names: Babee Cof, Benylin, Benylin Adult Formula, Benylin DM Pediatric, Benylin Pediatric, Buckleys Mixture, Buckley's Mixture Cough Suppressant, Children's Cough DM, Children's Robitussin 12 Hour Cough Relief, Cough DM, Cough Relief, Cough Suppressant, Creomulsion, Creomulsion Children, DayQuil Cough, Delsym, Delsym 12 Hour Cough Children & Adults, Delsym 12 Hour Cough Relief, Dextromethorphan HBr Adult Formula, Elixsure Cough, Father John's Medicine, Pertussin ES, Robafen Cough Liquidgels, Robafen Pediatric Cough & Cold, Robitussin CoughGels, Robitussin Honey Cough, Robitussin Long-Acting Cough, Robitussin Long-Acting CoughGels, Robitussin Maximum Strength, Robitussin Pediatric Cough Long-Acting, Robitussin Pediatric Cough Suppressant, Scot-Tussin Diabetic, Silphen DM, St. Joseph Cough Suppressant, Triaminic Long Acting Cough, Triaminic Softchew, Tussin Pediatric, Tylenol Simply Cough, Vicks 44 Cough Medicine, Vicks 44 Cough Relief, Vicks Formula 44, Vicks Nature Fusion Cough
Generic Name: dextromethorphan
- What is dextromethorphan?
- What are the possible side effects of dextromethorphan?
- What is the most important information I should know about dextromethorphan?
- What should I discuss with my healthcare provider before taking dextromethorphan?
- How should I take dextromethorphan?
- What happens if I miss a dose?
- What happens if I overdose?
- What should I avoid while taking dextromethorphan?
- What other drugs will affect dextromethorphan?
- Where can I get more information?
What is dextromethorphan?
Dextromethorphan is a cough suppressant that is used to treat cough caused by the common cold or flu.
Dextromethorphan will not treat a cough caused by smoking, asthma, or emphysema.
There are many brands and forms of dextromethorphan available. Not all brands are listed on this leaflet.
Dextromethorphan may also be used for purposes not listed in this medication guide.
What are the possible side effects of dextromethorphan?
Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Stop using dextromethorphan and call your doctor at once if you have:
- severe nervousness, confusion;
- severe dizziness or drowsiness;
- blurred vision; or
- painful or difficult urination.
Common side effects may include:
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What is the most important information I should know about dextromethorphan?
Do not use this medicine if you have used an MAO inhibitor in the past 14 days, such as isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, or tranylcypromine.
What should I discuss with my healthcare provider before taking dextromethorphan?
Do not use dextromethorphan if you have used an MAO inhibitor in the past 14 days. A dangerous drug interaction could occur. MAO inhibitors include isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, tranylcypromine, and others.
You should not use dextromethorphan if you are allergic to it.
Ask a doctor or pharmacist if this medicine is safe to use if you have any medical conditions.
Dextromethorphan should not be given to a child younger than 12 years old.
Ask a doctor before using this medicine if you are pregnant or breast-feeding.
This medicine may contain phenylalanine. Check the medication label if you have phenylketonuria (PKU).
How should I take dextromethorphan?
Use exactly as directed on the label, or as prescribed by your doctor. Cold or cough medicine is only for short-term use until your symptoms clear up.
Measure liquid medicine carefully. Use the dosing syringe provided, or use a medicine dose-measuring device (not a kitchen spoon).
Call your doctor if your symptoms do not improve after 7 days, or if you have a fever, rash, or headaches.
If you need surgery or medical tests, tell your surgeon or doctor ahead of time that you have taken dextromethorphan in the past few days.
Store at room temperature away from moisture, heat, and light. Do not freeze.

QUESTION
The common cold is one of the most common illnesses in the world. See AnswerWhat happens if I miss a dose?
Since cough or cold medicine is used when needed, you may not be on a dosing schedule. Skip any missed dose if it's almost time for your next dose. Do not use two doses at one time.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
What should I avoid while taking dextromethorphan?
Avoid driving or hazardous activity until you know how this medicine will affect you. Your reactions could be impaired.
Drinking alcohol can increase certain side effects of this medicine.
Ask a doctor or pharmacist before using over-the-counter medicines that may contain ingredients similar to dextromethorphan.
What other drugs will affect dextromethorphan?
Avoid using this medicine with other drugs that cause drowsiness or slow your breathing (such as opioid medicine, a muscle relaxer, or medicine for anxiety or seizures). Ask a doctor or pharmacist before using any other medication, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed in this medication guide.
Where can I get more information?
Your pharmacist can provide more information about dextromethorphan.
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