What is Dextromethorphan and pseudoephedrine?
This leaflet does not list all the brands or forms of dextromethorphan or pseudoephedrine. Dextromethorphan suppresses coughing. Pseudoephedrine acts as a decongestant. A combination medicine of dextromethorphan and pseudoephedrine can be used to treat allergies, nasal congestion, and sinus congestion due to the common flu. This medication guide does not list all possible uses for dextromethorphan or pseudoephedrine.
Side effects of Dextromethorphan and pseudoephedrine
If you experience symptoms suggestive of an allergic reaction, seek medical assistance immediately: hives, difficulty breathing and swelling of lips, face, tongue or throat.
The side effects of dextromethorphan or pseudoephedrine can be serious. If you experience:
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Fast, pounding, or uneven heartbeat;
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Severe dizziness or drowsiness;
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Nervousness;
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Trouble sleeping
Your symptoms could range from less serious side effects to none at all. There may be other side effects.Call your physician if experiencing symptoms. To report side effects directly, the FDA can be reached at 1-800-FDA-1088.
Warnings
Dextromethorphan or pseudoephedrine should not be used if you've taken an MAO inhibitor in the last 14 days. Examples include isocarboxazid (linezolid), methylene blue (injection), phenelzine (phenelzine), rasagiline (selegiline), tranylcypromine, and tranylcypromine.
Before you take this drug
This medicine should not be used if you have an allergy to dextromethorphan or pseudoephedrine. You should not take this medication if you've taken an MAO inhibitor in the last 14 days. A dangerous drug interaction may occur.MAO inhibitors include isocarboxazid (linezolid), phenelzine (rasagiline), selegiline (tranylcypromine), and rasagiline.
If you suffer from:
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A cough that produces mucus
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A cough that is caused by emphysema, smoking, or asthma
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Heart problems High blood pressure
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Urination and prostate problems
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Diabetes;
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A thyroid disorder.
Before taking this medication if you are pregnant or nursing, always speak to your physician first. Phenylalanine can be found in artificially sweetened liquid medications; if you suffer from phenylketonuria, make sure the label of your medicine matches it.
How to take Dextromethorphan and pseudoephedrine?
Follow the directions on the label or those prescribed by a healthcare provider when taking cold and cough medicines temporarily until your symptoms have subsided. Follow all instructions listed on the label when administering medication to your child. Measuring liquid medicine accurately is of vital importance; use either the provided dosing device or dose-measuring tool (not spoon) when dosing liquid medication. If your symptoms do not improve within 7 days or you develop fever, headache, cough or skin rash then seek medical assistance immediately. Store away from moisture or heat at room temperature to maintain ideal storage conditions, away from moisture or heat.
What happens if I miss the dose?
You may not have a schedule for dextromethorphan or pseudoephedrine, as they are used only when necessary. If it is almost time for your next dose, skip any missed one and go directly back on course with taking what was scheduled. Never take two doses in one go.
What happens if I overdose?
Dial 1-800-222-1222 immediately in case of poisoning and seek immediate medical care.
What should be avoided?
Dextromethorphan or pseudoephedrine can affect your reactions. Avoid driving and other hazardous activities until you are familiar with how they will affect you. You may be unable to react properly. Before using any other cold or cough medicines, ask your doctor or pharmacist if they contain similar ingredients. Alcohol consumption can have side effects when taken with this medication.
Interaction with other drug
Before using dextromethorphan or pseudoephedrine in conjunction with other medications, ask your doctor or pharmacist. This is especially important if you are taking any drugs that cause drowsiness, such as opioid medication, muscle relaxers, or medicines for anxiety or seizures. Inform your physician of all medications you are currently taking as well as those you are starting or stopping using, including prescription and nonprescription medicines, vitamins, and herbal products.This list does not include all possible interactions.
