Home | Drugs | Skin Disorders | Home Remedies | Diabetes | Health Blog


Generic Name

  • Guaifenesin/ phenylephrine/ phenylpropanolamine.

Brand Names

  • Ami-Tex, Banex, Dura-Gest, Duratex, Enomine, Entex, Fentex, Guaifenex, Phenylfenesin, Quinte.

General Information

Guaifenex is an expectorant. Guaifenex is used to treat the symptoms of the common cold and of infections of your sinuses, your lungs, and your throat. It works by making phlegm in the breathing tubes more liquid. This medication should not be used if you have certain medical conditions. It is used to break up congestion and mucous to ease breathing. Guaifenesin thins mucous, increases lubrication of the respiratory tract (lungs, nose, and throat), and increases the removal of mucous. Guaifenex passes into breast milk and may harm a nursing infant. Do not take this medication without first talking to your doctor if you are breast-feeding a baby. Caution is advised when using this drug in the elderly because they may be more sensitive to its effects, especially dizziness and lightheadedness.

Guaifenex Dosage

  • Dosage is based on your age, medical condition, and response to treatment.

Side Effects of Guaifenex

Some common side effects reported with this medicine include:

  • Difficulty breathing.
  • Diarrhea.
  • Swelling of your lips, tongue, or face; or hives.
  • Dizziness or headache.
  • Stomach upset.
  • Nausea, vomiting.

Warnings and precautions before taking Guaifenex

  • Before taking this medication, tell your doctor or pharmacist if you are allergic to pseudoephedrine or guaifenesin; or if you have any other allergies.
  • Do not take a double dose of this medication.
  • Do not take guaifenex if you have taken a monoamine oxidase inhibitor such as isocarboxazid, phenelzine, or tranylcypromine in the last 14 days. A dangerous drug interaction could occur, leading to serious side effects.
  • Drink plenty of extra fluids while taking this medication.


  • An overdose of guaifenesin is unlikely to occur. If you do suspect an overdose, call an emergency room or poison control left near you.
  • Symptoms of a Guaifenex overdose include vomiting, high blood pressure (headache, red face, blurred vision), an irregular heartbeat, and numbness of the fingers or toes.
  • US residents can call the US National Poison Hotline at 1-800-222-1222.



Home | Drugs | Contact Us | Skin Disorders | Home Remedies | Diabetes | Health Blog
Copyright © HealthAtoZ.info All Rights Reserved.

Disclaimer : All information on www.healthatoz.info is for educational purposes only. It is not a substitute for professional medical advice. For specific medical advice, diagnoses, and treatment, please consult your doctor.