Document View > Dextromethorphan (Oral) (Tablet, Chewable, Lozenge/Troche, Liquid, Film, Tablet, Capsule, Capsule, Liquid Filled)

Dextromethorphan (Oral) (Tablet, Chewable, Lozenge/Troche, Liquid, Film, Tablet, Capsule, Capsule, Liquid Filled)

Dextromethorphan (By mouth)
Dextromethorphan (dex-troe-meth-OR-fan)Treats a cough.Brand Name(s):
There may be other brand names for this medicine.

When This Medicine Should Not Be Used:
You should not use this medicine if you have had an allergic reaction to dextromethorphan. You should not use this medicine if you are also using an MAO inhibitor (such as Parnate®, Nardil®, or Marplan®) or if you have used one of these medicines in the past 2 weeks. Do not give any over-the-counter (OTC) cough and cold medicine to a baby or child under 4 years old. Using these medicines in very young children might cause serious or possibly life-threatening side effects.

How to Use This Medicine:
Chewable Tablet, Lozenge, Liquid, Thin Sheet, Tablet, Capsule, Liquid Filled Capsule

  • Your doctor will tell you how much medicine to use. Do not use more than directed.
  • Follow the instructions on the medicine label if you are using this medicine without a prescription.
  • You may take this medicine with or without food.
  • The chewable tablet can be chewed or crushed or swallowed whole. Drink plenty of water after swallowing the tablet.
  • Slowly dissolve the lozenge in your mouth.
  • Shake the oral liquid well just before each use. Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.

Drugs and Foods to Avoid:

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.


Warnings While Using This Medicine:

  • Make sure your doctor knows if you are pregnant or breastfeeding, or if you have asthma or liver disease.
  • This medicine may make you dizzy or drowsy. Avoid driving, using machines, or doing anything else that could be dangerous if you are not alert.

Possible Side Effects While Using This Medicine:
If you notice these less serious side effects, talk with your doctor:

  • Mild drowsiness, dizziness, nervousness, or restlessness
  • Nausea, vomiting, stomach pain

If you notice other side effects that you think are caused by this medicine, tell your doctor.
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088