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Chest Congestion (Generic Guaifenesin)

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Why is this medication prescribed?

Chest congestion can be relieved with guaifenesin. Although it doesn’t address the underlying cause of symptoms or hasten recovery, guaifenesin may aid in symptom control. Guaifenesin belongs to the group of drugs known as expectorants. To make it simpler to cough up mucus and clear the airways, it thins the mucus in the airways.

How should this medicine be used?

The oral dosage forms of guaifenesin include tablets, capsules, extended-release (long-acting) tablets, granules that dissolve, and syrups (liquids). Every four hours, as needed, the tablets, capsules, dissolving granules, and syrup are typically taken with or without meals. Every 12 hours, the extended-release tablet is often taken with or without food. Ask your doctor or pharmacist to explain any instructions you do not understand, and carefully follow any instructions on the packaging or on the label of your prescription. As directed, take guaifenesin as directed. Never take it in larger or less amounts or more frequently than directed by your doctor.

Guaifenesin is sold both on its own and in combination with decongestants, antihistamines, and cough suppressants. Find out which product is best for your symptoms by consulting your doctor or pharmacist. Before combining two or more over-the-counter cough and cold medications, carefully read the labelling. If you take these products together, you can experience an overdose because they might both contain the same active ingredient. This is crucial if you plan to give children cough and cold drugs.

Products containing guaifenesin, as well as other nonprescription cough and cold remedies, have the potential to be fatal to young infants. Give these goods to kids who are under the age of four not at all. If you provide these goods to kids between the ages of 4 and 11, use caution and pay close attention to the instructions on the container.

Read the package label carefully before giving guaifenesin or a combination product containing guaifenesin to a kid to be sure it is the proper medication for a child of that age. Products containing guaifenesin intended for adults should not be given to children.

Check the package label before giving a child a guaifenesin product to determine how much medication the youngster needs to take. Use the dose on the chart that corresponds to the child’s age. If you are unsure about how much medication to give the child, consult their doctor.

Do not measure your dose if you are consuming the drink with a regular spoon. Use a spoon designed specifically for measuring medication, the measuring cup that came with it, or both.

Take the extended-release pills with a full glass of water, swallowing them whole. Do not eat, shatter, or crush them.

When using the dissolving granules, dispense the entire packet’s contents onto your tongue before swallowing.

Call your doctor if your symptoms don’t go away in 7 days or if you also have a high fever, a rash, or a headache that won’t go away.

Other uses for this medicine

Ask your doctor or pharmacist for more details if you’re interested in using this drug for any other conditions.

What special precautions should I follow?

Before taking guaifenesin,

  • If you have an allergy to guaifenesin, any other medications, or any of the ingredients in the guaifenesin product you intend to take, let your doctor and pharmacist know right away. A list of the ingredients can be found on the package label.
  • Inform your doctor and pharmacist about all prescription and over-the-counter drugs, vitamins, dietary supplements, and herbal products that you are now taking or intend to use.
  • If you smoke, have or have ever had a cough that produces a lot of phlegm (mucus), or if you have or have ever had a lung condition like asthma, emphysema, or chronic bronchitis, let your doctor know. If you plan to take the dissolving granules, let your doctor know if you have kidney illness or are on a low-magnesium diet.
  • Inform your doctor if you are expecting, intend to get pregnant, or are nursing a baby. Call your doctor if you become pregnant while taking guaifenesin.
  • You should be aware that the dissolving granules might be sweetened with aspartame, a source of phenylalanine, if you have phenylketonuria (PKU), an inherited disorder that requires you to follow a particular diet to prevent brain damage that could cause severe intellectual disabilities.

What special dietary instructions should I follow?

While using this drug, drink lots of water.

Keep eating normally unless your doctor instructs you otherwise.

What should I do if I forget a dose?

Usually, guaifenesin is given as needed. Take the missing dose of guaifenesin as soon as you remember it if your doctor has instructed you to take it regularly. If the next dose is soon due, skip the missed one and carry on with your regular dosing plan. To make up for a missing dose, do not take a second one.

What side effects can this medication cause?

Side effects from guaifenesin are possible. If any of these symptoms are severe or do not go away, let your doctor know right once:

  • Headache
  • Nausea
  • Vomiting

Other negative effects of guaifenesin are possible. If you have any strange side effects while taking this medicine, contact your doctor right once.

You or your doctor can submit a report to the Food and Drug Administration’s (FDA) MedWatch Adverse Event Reporting programme online or by phone if you have a serious side event (1-800-332-1088).

What should I know about storage and disposal of this medication?

Keep this medication tightly closed in the original container and out of the reach of children. Store it away from excessive heat and moisture at room temperature (not in the bathroom).

Unused prescriptions must be disposed of carefully to prevent pets, kids, and other people from ingesting them. You should not, however, dispose of this medication in the toilet. Instead, utilising a medicine take-back programme is the easiest approach to get rid of your medication. To find out about take-back programmes in your area, speak with your pharmacist or the garbage/recycling department in your city. If you do not have access to a take-back programme, see the FDA’s Safe Disposal of Medicines website at for additional information.

As many containers (such as weekly pill minders and those for eye drops, creams, patches, and inhalers) are not child-resistant and are simple for young children to open, it is crucial to keep all medications out of sight and out of reach of children. Always lock safety caps and promptly stash medication up and away from young children where it is out of their sight and reach to prevent poisoning.

In case of emergency/overdose

Call the poison control hotline at 1-800-222-1222 in the event of an overdose. Additionally, information can be found online at Call 911 right once if the person has collapsed, experienced a seizure, is having difficulty breathing, or cannot be roused.

What other information should I know?

If you have any inquiries about guaifenesin, ask your pharmacist.

You should keep a written record of every medication you take, including any over-the-counter (OTC) items, prescription drugs, and dietary supplements like vitamins and minerals. This list should be brought with you whenever you see a doctor or are admitted to the hospital. You should always have this information with you in case of emergencies.

Brand names

  • Adult Tussin®
  • Air Power®
  • Bronchoril®
  • Chest Congestion®
  • Childrens Mucinex®
  • Childrens Mucus Relief®
  • Cough Out®
  • Diabetic Siltussin DAS-Na®
  • Diabetic Tussin Expectorant®
  • Diabetic Tussin Mucus Relief®
  • Equaline Tussin®
  • Equate Tussin®
  • Good Neighbor Pharmacy Tussin®
  • Good Sense Tussin®
  • Guiatuss®
  • Iophen NR®
  • Kids-EEZE®
  • Leader Adult Tussin®
  • Leader Mucus Relief®
  • Liqufruta®
  • Little Remedies Little Colds Mucus Relief Expectorant Melt Aways®
  • MucaPlex®
  • Mucinex®
  • Mucinex for Kids®
  • Mucus Relief®
  • Mucus Relief Chest®
  • Premier Value Chest Congestion Relief®
  • Q-Tussin®
  • Refenesen® Chest Congestion Relief
  • Robitussin® Chest Congestion
  • Scot-Tussin® Expectorant SF Cough
  • SelectHealth Tussin DM®
  • Siltussin DAS®
  • Siltussin SA®
  • Smart Sense Tussin®
  • Sunmark Tussin®
  • Topcare Mucus Relief®
  • Topcare Tussin®
  • Tussin®
  • Tussin Chest®
  • Tussin Chest Congestion®
  • Tussin Original®
  • Up and Up Childrens Mucus Relief®
  • Vicks® DayQuil®
  • Wal Tussin®
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