What is Dextromethorphan Polistirex ER: Uses, Warnings & Interactions

Updated May 14, 2025  •  Published Dec 30, 2020

Dextromethorphan Polistirex ER overview

BRAND NAMES:

  • Babee Cof Syrup, Children's Robitussin Cough Long Acting, Children's Triaminic Long Acting Cough, Cough DM, Creomulsion Cough, Creomulsion For Children, Delsym, Dextromethorphan Polistirex, Father John's Medicine, Good Neighbor Pharmacy Children's Cough DM, Good Neighbor Pharmacy Cough DM, Good Neighbor Pharmacy Cough DM ER, Good Neighbor Pharmacy Cough Gels, Good Neighbor Tussin, Good Sense Children's Cough DM

Generic Names:

  • Dextromethorphan Polistirex Er

Uses:

  • Treats a cough.

Therapeutic Classes:

  • Antitussive

Forms:

  • Chewable Tablet, Lozenge, Liquid, Thin Sheet, Tablet, Capsule, Liquid Filled Capsule

How it’s taken:

  • By mouth

What is Dextromethorphan Polistirex ER used for?

What form(s) does Dextromethorphan Polistirex ER come in

  • Chewable Tablet

  • Lozenge

  • Liquid

  • Thin Sheet

  • Tablet

  • Capsule

  • Liquid Filled Capsule

What are common Dextromethorphan Polistirex ER doses?

  • Bottle 89ML of 30MG/5ML

Common Dextromethorphan Polistirex ER prescriptions

  • Dextromethorphan Polistirex ER
    89ml of 30mg/5ml bottle

How to take Dextromethorphan Polistirex ER

  • 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.

  • Oral routeYou 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.

  • 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.

  • Oral routeYou 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.

  • Shake the oral liquid well just before each use. Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.

  • Slowly dissolve the lozenge in your mouth.

What to do if you miss a dose of Dextromethorphan Polistirex ER

  • Take the missed dose as soon as you remember. It is not usually a concern if you miss one dose.

  • Skip the missed dose if it is almost time for your next dose.

  • You should not use two doses at the same time.

Dextromethorphan Polistirex ER contraindications

  • 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.

Dextromethorphan Polistirex ER warnings

  • 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.

  • Make sure your doctor knows if you are pregnant or breastfeeding, or if you have asthma or liver disease.

Dextromethorphan Polistirex ER interactions

  • 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.

Dextromethorphan Polistirex ER side effects

Serious Side Effects

  • Mild drowsiness, dizziness, nervousness, or restlessness

  • Nausea, vomiting, stomach pain

Less Serious Side Effects

  • Mild drowsiness, dizziness, nervousness, or restlessness

  • Nausea, vomiting, stomach pain

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