Dextromethorphan Hydrobromide, Phenylephrine Hcl And Thonzylamine Hcl
FDA Drug Information • Also known as: Poly-Hist Dm
- Brand Names
- Poly-Hist Dm
- Route
- ORAL
- Dosage Form
- LIQUID
- Product Type
- HUMAN OTC DRUG
What Is Dextromethorphan Hydrobromide, Phenylephrine Hcl And Thonzylamine Hcl Used For?
Uses temporarily relieves these symptoms due to the common cold, hay fever (allergic rhinitis) or other upper respiratory allergies: cough due to minor throat and bronchial irritation runny nose sneezing itching of the nose and throat itchy, watery eyes nasal congestion reduces swelling of nasal passages
Dosage and Administration
Directions Do not exceed recommended dosage. Adults and children 12 years of age and over: 2 teaspoonfuls (10 mL) every 4 hours, not to exceed 12 teaspoonfuls in 24 hours, or as directed by a doctor. Children 6 to under 12 years of age: 1 teaspoonful (5 mL) every 4 hours, not to exceed 6 teaspoonfuls in 24 hours, or as directed by a doctor. Children 2 to under 6 years of age: Consult a doctor.
Warnings and Precautions
Warnings Do not exceed recommended dosage. Do not use this product if you are now taking a prescription monoamine oxidase inhibitor (MAOI) (certain drugs for depression, psychiatric, or emotional conditions, or Parkinson’s disease), or for 2 weeks after stopping the MAOI drug. If you do not know if your prescription drug contains an MAOI, ask a doctor or pharmacist before taking this product Ask a doctor before use if you have a cough that lasts or is chronic such as occurs with smoking, asthma or emphysema a cough that occurs with too much phlegm (mucus) a breathing problem such as emphysema or chronic bronchitis glaucoma trouble urinating due to an enlarged prostate gland heart disease high blood pressure thyroid disease diabetes Ask a doctor or pharmacist before use if you are taking sedatives or tranquilizers. When using this product excitability may occur, especially in children may cause marked drowsiness avoid alcoholic drinks alcohol, sedatives, and tranquilizers may increase the drowsiness effect use caution when driving a motor vehicle or operating machinery Stop use and ask a doctor if: cough or nasal congestion persists for more than 1 week, tends to recur, or is accompanied by a fever, rash or persistent headache. A persistent cough may be a sign of a serious condition. nervousness, dizziness, or sleeplessness occur new symptoms occur If pregnant or breast feeding, ask a health professional before use. Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.
About This Information
This drug information is sourced from FDA-approved labeling via the openFDA database. It is intended for educational and reference purposes only. This is not medical advice. Always consult your healthcare provider before making decisions about medication. Drug information may be updated by the FDA; check with your pharmacist for the most current information.
What are side effects?
Side effects are unwanted reactions that can occur when taking a medication. They range from mild (headache, nausea) to severe (allergic reactions, organ damage). Not everyone experiences side effects, and severity varies. Report any concerning side effects to your doctor.
What are drug interactions?
Drug interactions occur when a medication is affected by another drug, food, or supplement. Interactions can make medications less effective or cause dangerous side effects. Always tell your doctor about all medications and supplements you take.