Get emergency medical help if you have signs of an allergic reaction : hives; difficult breathing; swelling of your face, lips, tongue, or throat. This is not a complete list of side effects and others may occur.
Call your doctor for medical advice about side effects. Ask a doctor or pharmacist before using other cough or cold medicines that may contain similar ingredients. Avoid driving or hazardous activity until you know how this medicine will affect you.
Your reactions could be impaired. Use Mucinex Guaifenesin exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended. Use exactly as directed on the label, or as prescribed by your doctor. Cold or cough medicine is only for short-term use until your symptoms clear up. Always follow directions on the medicine label about giving cough or cold medicine to a child. Do not use the medicine only to make a child sleepy.
Death can occur from the misuse of cough or cold medicines in very young children. Measure liquid medicine carefully. Use the dosing syringe provided, or use a medicine dose-measuring device not a kitchen spoon. To use guaifenesin granules, pour out the entire packet onto your tongue and swallow without chewing. The chart below lists examples of possible side effects of Mucinex and Mucinex DM. These drugs are called monoamine oxidase inhibitors, or MAOIs.
Examples of these drugs include:. The interaction between these drugs and Mucinex DM can cause a serious reaction known as serotonin syndrome. This reaction can be life threatening. Symptoms of serotonin syndrome include:. Keep reading: Serotonin syndrome symptoms, treatment, and more ». Also, dextromethorphan, one of the ingredients in Mucinex DM, is a commonly misused drug.
It can cause a high or euphoria when used in high doses. It can even cause hallucinations. For the best results:. What side effects can Mucinex DM cause? Learn about the symptoms that Mucinex and NyQuil treat and more to see if one of these drugs is right for your cold or flu. Learn more about the ways you can treat a stuffy nose, or nasal congestion, at home, including tips on decongestants, humidifiers, and steam remedies. Steam inhalers are used as personal saunas for skin care or supporting respiratory health.
We created a list of steam inhalers to suit your needs. You may have heard that you can sweat out a cold, but is this an effective remedy? Learn more here. Typically, postnasal drip can be alleviated at home.
Try these remedies and OTC products to relieve your symptoms. Salt water gargles are touted as an effective and easy home remedy for a sore throat. We explain why, plus additional benefits. Can apple cider vinegar be used for colds? We explain the benefits of apple cider vinegar, and what the science says about it treating the common cold. Health Conditions Discover Plan Connect. Nonprescription cough and cold combination products, including products that contain guaifenesin, can cause serious side effects or death in young children.
Do not give these products to children younger than 4 years of age. If you give these products to children 4 to 11 years of age, use caution and follow the package directions carefully. If you are giving guaifenesin or a combination product that contains guaifenesin to a child, read the package label carefully to be sure that it is the right product for a child of that age.
Do not give guaifenesin products that are made for adults to children. Before you give a guaifenesin product to a child, check the package label to find out how much medication the child should receive. Give the dose that matches the child's age on the chart.
Ask the child's doctor if you don't know how much medication to give the child. If you are taking the liquid, do not use a household spoon to measure your dose.
Use the measuring spoon or cup that came with the medication or use a spoon made especially for measuring medication. Swallow the extended-release tablets whole with a full glass of water. Do not break, crush, or chew them. If you are taking the dissolving granules, empty the entire contents of the packet onto your tongue and swallow. If your symptoms do not improve within 7 days or if you also have a high fever, a rash, or a headache that does not go away, call your doctor.
This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information. Guaifenesin is usually taken as needed. If your doctor has told you to take guaifenesin regularly, take the missed dose as soon as you remember it.
However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one. Guaifenesin may cause other side effects. Call your doctor if you have any unusual problems while you are taking this medication. Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture not in the bathroom.
Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them.
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