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Dextromethorphan HBr Monohyd
Dextromethorphan HBr Monohydrate is an antitussive (cough suppressant) commonly used to treat cough caused by the common cold, bronchitis, or other respiratory conditions. It works by affecting the signals in the brain that trigger the cough reflex, helping to reduce the frequency and intensity of coughing. Dextromethorphan is available in various over-the-counter formulations and is often combined with other medications to treat multiple cold symptoms.
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Frequently Asked Questions
How long does it take for Dextromethorphan HBr Monohyd to work?
Dextromethorphan typically begins working within 15 to 30 minutes after taking the medication, with effects lasting around 4 to 6 hours for immediate-release formulations.
Can I take Dextromethorphan HBr Monohyd with other cold medications?
Many cold medications contain dextromethorphan, so be careful not to take multiple products with the same active ingredient. Always check the labels of other medications to avoid overdose.
Is Dextromethorphan HBr Monohyd safe for long-term use?
This medication is intended for short-term use to relieve temporary coughs. If your cough persists for more than 7 days, or if other symptoms develop, consult your healthcare provider.
What should I do if I miss a dose?
If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not double up doses.
Can Dextromethorphan HBr Monohyd cause drowsiness?
Yes, drowsiness is a possible side effect. If you experience significant drowsiness, avoid driving or operating machinery until you know how the medication affects you.
Comprehensive Drug Guide
How Does Dextromethorphan HBr Monohyd Work?
Dextromethorphan works by acting on the cough center in the brain, specifically the medulla, to suppress the cough reflex. It does not treat the underlying cause of the cough, such as infections or inflammation, but provides relief from persistent or bothersome coughing.
What is Dextromethorphan HBr Monohyd Used For?
- Temporary relief of cough due to minor throat and bronchial irritation
- Cough suppression in cases of the common cold, flu, or bronchitis
Common Dosages
Dextromethorphan is available in the following forms and strengths:
- Liquid: 10 mg/5 mL or 15 mg/5 mL
- Tablets/Capsules: 10 mg, 15 mg, or 30 mg per dose
- Extended-release: 30 mg or 60 mg capsules
Typical Dosing
FDA Approved Indications
- Adults and children 12 years and older: 10-20 mg every 4 hours, or 30 mg every 6-8 hours as needed, with a maximum daily dose of 120 mg.
- For extended-release formulations, 60 mg every 12 hours is the typical dose.
Who Shouldn't Take Dextromethorphan HBr Monohyd?
Dextromethorphan HBr Monohyd should not be used in individuals with:
- Concurrent use of monoamine oxidase inhibitors (MAOIs) or within 14 days of stopping MAOI therapy
- Known hypersensitivity to dextromethorphan or any other ingredients in the formulation
Advice From The Pharmacist
- Do not exceed the recommended dosage, as excessive amounts of dextromethorphan can lead to serious side effects, including confusion, hallucinations, or dizziness.
- Avoid using this medication with alcohol or other sedatives, as it may increase the risk of drowsiness or dizziness.
- If your cough persists for more than 7 days, or if it is accompanied by fever, rash, or persistent headache, consult your healthcare provider, as this could indicate a more serious condition.
- Store the medication in a cool, dry place and keep it out of reach of children.
Side Effects of Dextromethorphan HBr Monohyd
Common Side Effects
- Drowsiness or dizziness
- Nausea
- Upset stomach
- Nervousness or restlessness
Uncommon/Severe Side Effects
- Confusion or hallucinations
- Difficulty breathing
- Severe allergic reactions (e.g., rash, swelling, difficulty breathing)
Risks and Warnings of Dextromethorphan HBr Monohyd
- Potential for Abuse: Although dextromethorphan is available over-the-counter, high doses can lead to abuse, particularly in teenagers and young adults. Misuse of the drug, also known as "robotripping," can cause euphoria, hallucinations, and dangerous side effects.
- Use in Children: Do not use dextromethorphan for children under 4 years old without medical advice, as it may not be safe for young children.
Interactions with Dextromethorphan HBr Monohyd
Common Drug Interactions
- Monoamine oxidase inhibitors (MAOIs): Combining dextromethorphan with MAOIs can lead to serious, life-threatening interactions, including serotonin syndrome.
- Alcohol and sedatives: Dextromethorphan may enhance the sedative effects of alcohol and certain medications, leading to excessive drowsiness or dizziness.
- Selective serotonin reuptake inhibitors (SSRIs): Using dextromethorphan with SSRIs can increase the risk of serotonin syndrome.
Alternatives to Dextromethorphan HBr Monohyd
- Guaifenesin: A cough expectorant used to thin mucus and make coughing more productive.
- Diphenhydramine: An antihistamine with antitussive properties often used for nighttime cough relief.
- Benzonatate: A prescription non-narcotic cough suppressant that numbs the throat and lungs to reduce the urge to cough.
