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Silphen DM

Generic name: dextromethorphan (also known as DEX-troe me-THOR-fan)
Names of brands: Babee Cof, Buckley’s Mixture Cough Suppressant Children’s Cough DM Children’s Robitussin 12 Hours: Cough Relief, Cough DM,… Show the 19 different brands
Drug class: antitussives

What is Silphen DM?

Silphen DM is an effective cough suppressant that is used to treat coughs that are caused by a commonly occurring cold or flu.Silphen DM is not a treatment for coughs that are caused by smoke, asthma, or emphysema.

There are numerous kinds and brands of dextromethorphan available. There aren't all brands included in this leaflet.Silphen DM could also be used to treat conditions that are not covered in this guide.

Side effects of Silphen DM

See a doctor immediately. If you are experiencing symptoms that indicate an allergic reaction, such as symptoms of hives, difficulty breathing, and swelling of your lips, face, or tongue,

Silphen DM may cause serious side effects. Stop taking Silphen DM and consult your doctor right away in the event that you suffer from:

  • Extreme nervousness and confusion
  • Severe dizziness or drowsiness;
  • Blurred vision
  • It is difficult or painful to urinate.

Common negative consequences of Silphen DM can include:

  • Sickness, diarrhea, and appetite loss;
  • Dizziness;
  • Tingling;
  • Being restless.

This isn't a complete list of all the side effects. Other effects may also be present. Contact your physician for advice regarding medical adverse effects. You can report adverse reactions to the FDA at 1-800-FDA-1088.


Don't use Silphen DM if you have previously used an MAO inhibitor within the last 14 days, for example, isocarboxazid linezolid blue injection, or phenelzine rasagiline and selegiline, as well as tranylcypromine.

Prior to use this drug

Don't use Silphen DM if you have previously used an MAO inhibitor within the last 14 days. A risky drug interaction may occur. MAO inhibitors are isocarboxazid linezolid, methylene blue injection rasagiline, phenelzine, and tranylcypromine, among others.It is not recommended to use Silphen DM if you are allergic.

Consult a pharmacist or doctor to determine if this medication is suitable for you if you suffer from any medical condition.Silphen DM is not to be administered to children less than 12 years old.Talk to your doctor prior to taking this medicine if you are nursing or pregnant.

This medication may contain phenylalanine. Make sure to read the label on the medicine to determine if you suffer from phenylketonuria (PKU).

How to take Silphen DM?

Take exactly as indicated on the label or as recommended by your physician. The cold or cough medication is meant for short-term use only until symptoms improve.Take care when measuring liquid medicines. Use the dosing syringe supplied or a dose-measuring device (not an ordinary spoon).

Consult your physician if symptoms don't improve after 7 days or if you experience symptoms such as a high fever, rash, or headaches.

If you require an operation or other medical examination, inform your doctor or surgeon prior to the time of your appointment that you've taken Silphen DM in the last few days.Keep at room temperature, far from heat, moisture, and light. Don't freeze.

What happens if I miss the dose?

Since cold or cough medicine is taken when it's required, it is possible that you are not on a prescribed schedule. Don't miss any doses in the event that it's nearing time to get the next dose. Don't take two doses in one go.

What happens if I overdose?

Get medical attention in an emergency or contact the poison help line at 1-800-222-1222.

What should be avoided?

Avoid driving or engaging in hazardous activities until you are aware of the extent to which Silphen DM can affect you. Your reaction could be affected.Drinking alcohol can trigger the effects of this drug.

Talk to a pharmacist or doctor prior to taking any prescription medications that may have components similar to Silphen DM.

Interaction with other drugs

Do not take this medication in conjunction with other medications that may result in drowsiness or slowing the rate of breathing (such as opioids as well as a muscle relaxer or medication to treat anxiety as well as seizures). Consult a physician or pharmacist before taking any other medications, such as prescription or over-the-counter medications, vitamins, and herbal remedies. Some interactions with drugs are covered in this guide to medication.