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Xpect

Generic Name: carbetapentane and guaifenesin (kar BET a PEN tane, and gwye FEN e sin)
Brand Name: Allfen C, Allfen CX, Xpect-AT
Physician reviewed Xpect-AT patient information - includes Xpect-AT description, dosage and directions.
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Drug Information:
Carbetapentane is a cough suppressant. It affects the signals in the brain that trigger cough reflex. Guaifenesin is an expectorant. It helps loosen mucus congestion in your chest and throat, making it easier to cough out through your mouth. Xpect-AT is a combination medicine used to treat stuffy nose, cough, and chest congestion caused by the common cold or flu. Xpect-AT will not treat a cough that is caused by smoking, asthma, or emphysema. Xpect-AT may also be used for purposes not listed in this medication guide. Learn more

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Xpect Side Effects

Note: This document contains side effect information about carbetapentane / guaifenesin. Some of the dosage forms listed on this page may not apply to the brand name Xpect-AT.

Applies to carbetapentane / guaifenesin: oral tablet extended release

Warning

Do not use this medicine if you have used an MAO inhibitor in the past 14 days, such as isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, or tranylcypromine.

Get emergency medical help if you have any of these signs of an allergic reaction while taking carbetapentane / guaifenesin: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop using this medication and call your doctor at once if you have:

  • confusion, hallucinations, feeling restless or nervous;

  • tremors; or

  • extreme weakness.

Common side effects may include:

  • drowsiness, dizziness;

  • headache;

  • sleep problems (insomnia); or

  • nausea.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.

More about Xpect-AT (carbetapentane / guaifenesin)

  • Dosage Information
  • Imprints, Shape & Color Data
  • Drug Interactions
  • En Español
  • Drug class: upper respiratory combinations
  • FDA Alerts (1)

Consumer resources

  • Xpect-AT

Other brands: Allfen C, Allfen CX

Professional resources

Other Formulations

  • Xpect
  • Xpect-PE

Related treatment guides

  • Cough

Editorial References and Review

Medically reviewed by USARx EDITORIAL TEAM Last updated on 1/1/2020.

Source: Drugs.com Xpect (www.drugs.com/mtm/xpect-at.html).