Generic
Dextromethorphan Polistirex Extended Release Suspension
1 brands available in the market
At a glance
Dextromethorphan Polistirex Extended Release Suspension is a long-acting cough suppressant used for the treatment of dry cough.
Description
Dextromethorphan Hydrobromide is a cough suppressant which has a central action on the cough centre in the medulla. Polistirex forms a matrix around the Dextromethorphan particles, which slows down the dissolution of the Dextromethorphan in the gastrointestinal tract, leading to a gradual and prolonged release into the bloodstream. The duration of action is 12 hours with extended release suspension dosage form.
Indications
- Chronic dry cough
- Unproductive cough
- Acute dry cough interfering with normal function or sleep
Therapeutic class
Cough suppressant
Pharmacological class
Long-acting Antitussive
Pharmacology
Dextromethorphan Hydrobromide is a cough suppressant which has a central action on the cough centre in the medulla. Polistirex forms a matrix around the Dextromethorphan particles, which slows down the dissolution of the Dextromethorphan in the gastrointestinal tract, leading to a gradual and prolonged release into the bloodstream. The duration of action is 12 hours.
Mechanism of action
Dextromethorphan acts on the medullary cough centre to suppress cough; Polistirex matrix ensures prolonged release of dextromethorphan, maintaining efficacy for up to 12 hours.
Dosage
Adults and children ≥12 years: 10 ml every 12 hours (max 20 ml in 24 hours).
Children (6-12 years): 5 ml every 12 hours (max 10 ml in 24 hours).
Children (4-6 years): 2.5 ml every 12 hours (max 5 ml in 24 hours).
Children under 4 years: Not recommended.
Administration
Measure with a measuring cup, shake well before use. May be taken with or without food.
Missed dose
If you miss a dose, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose. Do not double the dose.
Side effects
Rare: Nausea, dizziness.
Overdose: Excitement, confusion, respiratory depression.
Precautions & warnings
Use with caution in patients with liver disease (dextromethorphan is extensively metabolized in the liver). Do not use with MAOIs.
Contraindications
Concomitant use with MAOIs.
Drug interactions
Phenelzine: Two fatal interactions have been reported with therapeutic doses of phenelzine and dextromethorphan.
Food interactions
Can be taken with or without food.
Use in pregnancy
Avoid during the first three months of pregnancy.
Pregnancy Category: C — always consult a doctor before taking during pregnancy.
Use in lactation
No information is available on secretion of dextromethorphan into breast milk; nursing mothers should be advised not to take the drug.
Pediatric use
Not recommended for children under 4 years of age.
Geriatric use
No specific dosage adjustment is necessary for elderly patients.
Renal / hepatic impairment
Caution is advised in patients with liver disease.
Overdose effects
Overdose may cause excitement, confusion, and respiratory depression. Seek medical attention.
Storage conditions
Store below 30°C in dry place. Keep away from light. Keep out of reach of children.
Chemical structure
Dextromethorphan Polistirex Extended Release Suspension