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How Safe Is Guaifenesin for Children?

Nicole Madison
Nicole Madison
Nicole Madison
Nicole Madison

In general, guaifenesin, a medication used to relieve chest congestion, is considered safe for use by children. Often, parents administer it to their children for the purpose of relieving chest congestion caused by cold and flu viruses, and it is an included ingredient in a number of over-the-counter (OTC) cough medications. The fact that this medication is generally considered safe for children doesn't mean there are no risks, however. Some children may experience side effects when using it, especially when it is used for a prolonged period of time, and it may not prove to be the best option for very young children. Beyond safety, however, it is important to understand that using guaifenesin for children may not prove effective in all cases.

Using guaifenesin for children generally is safe as long as it is administered based on the dosing recommendations on the bottle and with the approval of the child's doctor. When a person purchases this medication over the counter, the packaging usually includes dosage information that is based on age. For example, a person may find one dosage recommendation for adults and children over 12 and another dosage for children under 12. Often, such medication also lists an age for which the drug is not recommended. Since medication can affect children in a far different manner than it does adults, parents are often advised to consult with a pediatrician before giving their children this or any other OTC medication, even if it is usually considered safe.

It's crucial to check dosage instructions before giving guaifenesin or any other medication to babies and children.
It's crucial to check dosage instructions before giving guaifenesin or any other medication to babies and children.

When taken according to the instructions on the packaging and with the approval of the child's doctor, guaifenesin is likely to prove safe but can still cause unpleasant side effects. For example, some children may become nauseated and vomit while taking this medication. Others might develop headaches, feel dizzy, or become drowsy while taking it. More serious side effects of guaifenesin for children include allergic reactions and kidney stones. It also is important to note that if a child takes a medication that contains other active ingredients in addition to guaifenesin, he may experience additional side effects.

Guaifenesin, which is used to treat chest congestion, is considered safe for us by children.
Guaifenesin, which is used to treat chest congestion, is considered safe for us by children.

It is important to keep in mind that guaifenesin is generally not recommended for very young children unless a doctor approves its use. For example, many experts recommend against using guaifenesin for children under four years of age, as they may face an increased risk of serious side effects from the drug. Some of the side effects may even prove life threatening in a child of this age.

Children's Guaifenesin Dosage

Guaifenesin is commonly used to relieve chest congestion by making mucus thinner.
Guaifenesin is commonly used to relieve chest congestion by making mucus thinner.

It is extremely important to remember that not all medications that contain guaifenesin for kids require the same dosage. Additives and varying concentrations will affect the amount your child needs of a particular brand or product. Always read the instruction labels carefully and follow the guidance based on your child's age and weight. In addition, always consult with a physician before giving your child any new type of medication, including guaifenesin for kids.

In general, the Children’s guaifenesin dosage recommendations are as follows:

  • Regular strength oral medications :

  • Infants and children under the age of 4 should not use this medication.
  • 50 to 100 mg every 4 hours for children ages 4 to 6
  • 100 to 200 mg every 4 hours for children ages 6 to 12
  • 200 to 400 mg every 4 hours for adults
  • Extended-release, extra strength, or long-lasting medications:
  • Infants and children under the age of 4 should not use this medication.
  • 300 mg every 12 hours for children ages 4 to 6
  • 600 mg every 12 hours for children ages 6 to 12
  • 600-1200 mg every 12 hours for adults
When taken according to package instructions and with the approval of a child's doctor, guaifenesin is likely to prove safe but may have side effects.
When taken according to package instructions and with the approval of a child's doctor, guaifenesin is likely to prove safe but may have side effects.

There are situations where a doctor will recommend taking or continuing the use of guaifenesin for kids even if symptoms are improving. This can help keep potential problems from developing during serious illness. However, most of the time, parents should only administer the medication as needed and should reevaluate symptoms before giving a child the next dose.

Side effects of guaifenesin may include kidney stones.
Side effects of guaifenesin may include kidney stones.

Before giving your child guaifenesin for kids, it can be helpful to have them eat a snack or meal first; this can help prevent digestive-related side effects. Be sure to have your child drink plenty of water with the medicine, especially when using tablets, capsules, or pills. As with any type of medication, whether over-the-counter or prescription, it is very important to take note of the time and amount of every single dose. This helps ensure compliance with the instructions and lowers the risks for unintentional overdosing.

What Is a Good Expectorant for Kids?

Even if taken correctly, guaifenesin may cause headaches or other side effects in some children.
Even if taken correctly, guaifenesin may cause headaches or other side effects in some children.

Currently, guaifenesin is the only over-the-counter expectorant that is available for children. Other medications that contain cough suppressants and nasal decongestants can also help with some symptoms. However, an expectorant is different from these options because it loosens and thins the mucus in your airways, helping make coughs more productive.

Guaifenesin is included in a number of over-the-counter cough medications for children.
Guaifenesin is included in a number of over-the-counter cough medications for children.

When taken as directed, guaifenesin is considered safe for many people over the age of four. Those with more serious illnesses or conditions may receive a prescription expectorant for their symptoms. Potassium iodide is sometimes prescribed for this purpose but is not often used because of its high risk for adverse side effects.

Other Remedies for Children With Chest Congestion

Most of the time, doctors encourage parents to limit or avoid cough and cold medications for young children, especially cough suppressants. Children are at a much higher risk of developing pneumonia if they are no longer working to clear their airways of mucus. The risk for accidental overdosing can be higher with these types of products, especially when using those that contain multiple ingredients. Parents tend to give pain relievers at the same time, and it can be dangerous to mix medications, especially when giving them to younger children. Fortunately, there are many other effective ways to deal with chest congestion so that children (and parents) can experience some relief.

Surround Them With Warm, Moist Air

Steam and warm water vapor can help lubricate the airways and thin out mucus. Keep a humidifier in your child's room when they are sleeping at night and during nap time. Warm baths can also be helpful. One of the most effective ways to treat chest congestion is to run a very hot shower and close the bathroom door. Sit with your child in the bathroom for as long as they are willing, allowing them to breathe in lots of warm, moist air.

Have Them Drink Plenty of Fluids

Dehydration can make chest congestions much worse, so offer them something to drink often. Ideally, your sick child should keep a cup or water bottle with them at all times so they can continuously sip throughout the day. Dairy can actually thicken mucus and make congestion worse, so avoid milk. Water is a much better option, along with warm broth and decaffeinated tea.

Use a Natural Vapor Rub

Medicine-free vapor rubs made with natural ingredients can help open up the airways and promote better breathing, especially at night. Apply some to your child's chest or the bottoms of their feet before laying them down to sleep. Keep in mind that even natural products are not recommended for children under the age of two. Always consult with a pediatrician first.

Nicole Madison
Nicole Madison

Nicole’s thirst for knowledge inspired her to become a WiseGEEK writer, and she focuses primarily on topics such as homeschooling, parenting, health, science, and business. When not writing or spending time with her four children, Nicole enjoys reading, camping, and going to the beach.

Learn more...
Nicole Madison
Nicole Madison

Nicole’s thirst for knowledge inspired her to become a WiseGEEK writer, and she focuses primarily on topics such as homeschooling, parenting, health, science, and business. When not writing or spending time with her four children, Nicole enjoys reading, camping, and going to the beach.

Learn more...

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    • It's crucial to check dosage instructions before giving guaifenesin or any other medication to babies and children.
      By: Ana Blazic Pavlovic
      It's crucial to check dosage instructions before giving guaifenesin or any other medication to babies and children.
    • Guaifenesin, which is used to treat chest congestion, is considered safe for us by children.
      By: Zsolt Biczó
      Guaifenesin, which is used to treat chest congestion, is considered safe for us by children.
    • Guaifenesin is commonly used to relieve chest congestion by making mucus thinner.
      By: ognianmed
      Guaifenesin is commonly used to relieve chest congestion by making mucus thinner.
    • When taken according to package instructions and with the approval of a child's doctor, guaifenesin is likely to prove safe but may have side effects.
      By: micromonkey
      When taken according to package instructions and with the approval of a child's doctor, guaifenesin is likely to prove safe but may have side effects.
    • Side effects of guaifenesin may include kidney stones.
      By: reineg
      Side effects of guaifenesin may include kidney stones.
    • Even if taken correctly, guaifenesin may cause headaches or other side effects in some children.
      By: Gelpi
      Even if taken correctly, guaifenesin may cause headaches or other side effects in some children.
    • Guaifenesin is included in a number of over-the-counter cough medications for children.
      By: Tyler Olson
      Guaifenesin is included in a number of over-the-counter cough medications for children.