Guaiatussin



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Generic Name: guaifenesin (oral)
(gwye FEN e sin)

What is Guaiatussin?

Guaiatussin is an expectorant. It helps loosen congestion in your chest and throat, making it easier to cough out through your mouth.

Guaiatussin is used to reduce chest congestion caused by the common cold, infections, or allergies.

Guaiatussin may also be used for other purposes not listed in this medication guide.

What is the most important information I should know about Guaiatussin?

You should not use this medicine if you are allergic to Guaiatussin.

Use this medication exactly as directed on the label, or as prescribed by your doctor. Do not use it in larger amounts or for longer than recommended.

Always ask a doctor before giving cough or cold medicine to a child.Death can occur from the misuse of cough or cold medicine in very young children.

Drink extra fluids to help loosen the congestion and lubricate your throat while you are taking this medication.

This medication can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.

What should I discuss with my healthcare provider before taking Guaiatussin?

You should not use this medicine if you are allergic to Guaiatussin.

FDA pregnancy category C. This medication may be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment.

It is not known whether Guaiatussin passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

How should I take Guaiatussin?

Use this medication exactly as directed on the label, or as prescribed by your doctor. Do not use it in larger amounts or for longer than recommended.

Always ask a doctor before giving cough or cold medicine to a child.Death can occur from the misuse of cough or cold medicine in very young children.

Drink extra fluids to help loosen the congestion and lubricate your throat while you are taking this medication.

Take Guaiatussin with food if it upsets your stomach.

Measure the liquid form of Guaiatussin with a special dose-measuring spoon or cup, not a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist for one.

Do not crush, chew, break, or open a controlled-release, delayed-release, or extended-release tablet or capsule. Swallow the pill whole. It is specially made to release medicine slowly in the body. Breaking or opening the pill would cause too much of the drug to be released at one time.

Store Guaiatussin at room temperature away from moisture, heat, and direct sunlight.

What happens if I miss a dose?

Take the missed dose as soon as you remember. If it is almost time for your next dose, wait until then to take the medicine and skip the missed dose. Do nottake extra medicine to make up the missed dose.

What happens if I overdose?

Seek emergency medical attention if you think you have used too much of this medicine.

An overdose of Guaiatussin is not likely to cause life-threatening symptoms.

What should I avoid while taking Guaiatussin?

This medication can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.

What are the possible side effects of Guaiatussin?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Less serious side effects may include:

  • dizziness or headache,
  • a rash, or
  • nausea, vomiting, or stomach upset.

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.

What other drugs will affect Guaiatussin ?

There may be other drugs that can interact with Guaiatussin. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.

Where can I get more information?

Your pharmacist can provide more information about Guaiatussin.


Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.