Slideshows Images Quizzes

Copyright © 2018 by RxList Inc. RxList does not provide medical advice, diagnosis or treatment. See additional information.

Singulair vs. Xyzal

Reviewed on 5/13/2019

Are Singulair and Xyzal the Same Thing?

Singulair (montelukast) and Xyzal (levocetirizine dihydrochloride) are used to treat allergic rhinitis.

Singulair is also used to treat asthma and for prevention of exercise-induced narrowing of the airways.

Singulair and Xyzal belong to different drug classes. Singulair is a leukotriene receptor antagonist and Xyzal is an antihistamine.

Xyzal is available over-the-counter (OTC).

Side effects of Singulair and Xyzal that are similar include diarrhea, tiredness/fatigue, stuffy nose, sore throat, and cough.

Side effects of Singulair that are different from Xyzal include skin rash, mood changes, tremors, headache, stomach pain, heartburn, upset stomach, nausea, tooth pain, fever, and hoarseness.

Side effects of Xyzal that are different from Singulair include drowsiness, weakness, sinus pain, vomiting, constipation, dry mouth, or weight gain.

Singulair may interact with phenobarbital or rifampin.

Xyzal may interact with alcohol, other medicines that can make you drowsy (cold or allergy medicine, sedatives, narcotics, sleeping pills, muscle relaxers, medicine for seizures, depression or anxiety), ritonavir, or theophylline.

What Are Possible Side Effects of Singulair?

Common side effects of Singulair include:

  • skin rash,
  • mood changes,
  • tremors,
  • headache,
  • stomach pain,
  • heartburn,
  • upset stomach,
  • nausea,
  • diarrhea,
  • tooth pain,
  • tiredness,
  • fever,
  • stuffy nose,
  • sore throat,
  • cough,
  • and hoarseness.

What Are Possible Side Effects of Xyzal?

Common side effects of Xyzal include:

  • drowsiness,
  • fatigue,
  • weakness,
  • tired feeling,
  • stuffy nose,
  • sinus pain,
  • sore throat,
  • cough,
  • vomiting,
  • diarrhea,
  • constipation,
  • dry mouth, or
  • weight gain

Tell your doctor if you have serious side effecs of Xyzal including:

  • lightheadedness,
  • nosebleeds (especially in a child),
  • pain or fullness in your ear,
  • hearing problems,
  • depression,
  • agitation,
  • aggression,
  • hallucinations,
  • numbness or tingling around your lips or mouth,
  • yellowing of your skin or eyes (jaundice),
  • painful or difficult urination,
  • dark-colored urine,
  • foul-smelling stools,
  • fever,
  • stomach pain, or
  • loss of appetite

What Is Singulair?

Singulair (montelukast) is a leukotriene receptor antagonist drug used in the treatment of asthma and allergic rhinitis. Singulair is also indicated for prevention of exercise-induced narrowing of the airways.

What Is Xyzal?

Xyzal (levocetirizine dihydrochloride) is an antihistamine indicated for the relief of symptoms associated with seasonal allergic rhinitis in adults and children 2 years of age and older.

SLIDESHOW

Could I Be Allergic? Discover Your Allergy Triggers See Slideshow

What Drugs Interact With Singulair?

Singulair may interact with phenobarbital or rifampin

What Drugs Interact With Xyzal?

Xyzal may interact with alcohol, other medicines that can make you drowsy (cold or allergy medicine, sedatives, narcotics, sleeping pills, muscle relaxers, medicine for seizures, depression or anxiety). Xyzal may also interact with ritonavir or theophylline.

How Should Singulair Be Taken?

The following doses of Singulair are recommended: For adults and adolescents 15 years of age and older: one 10-mg tablet. For pediatric patients 6 to 14 years of age: one 5-mg chewable tablet. For pediatric patients 2 to 5 years of age: one 4-mg chewable tablet or one packet of 4-mg oral granules. For pediatric patients 12 to 23 months of age: one packet of 4-mg oral granules. Singulair may interact with phenobarbital or rifampin.

How Should Xyzal Be Taken?

Xyzal may interact with alcohol, other medicines that can make you drowsy (cold or allergy medicine, sedatives, narcotics, sleeping pills, muscle relaxers, medicine for seizures, depression or anxiety). Xyzal may also interact with ritonavir or theophylline.

QUESTION

Allergies can best be described as: See Answer

From WebMD Logo

Disclaimer

All drug information provided on RxList.com is sourced directly from drug monographs published by the U.S. Food and Drug Administration (FDA).

Any drug information published on RxList.com regarding general drug information, drug side effects, drug usage, dosage, and more are sourced from the original drug documentation found in its FDA drug monograph.

Drug information found in the drug comparisons published on RxList.com is primarily sourced from the FDA drug information. The drug comparison information found in this article does not contain any data from clinical trials with human participants or animals performed by any of the drug manufacturers comparing the drugs.

The drug comparisons information provided does not cover every potential use, warning, drug interaction, side effect, or adverse or allergic reaction. RxList.com assumes no responsibility for any healthcare administered to a person based on the information found on this site.

As drug information can and will change at any time, RxList.com makes every effort to update its drug information. Due to the time-sensitive nature of drug information, RxList.com makes no guarantees that the information provided is the most current.

Any missing drug warnings or information does not in any way guarantee the safety, effectiveness, or the lack of adverse effects of any drug. The drug information provided is intended for reference only and should not be used as a substitute for medical advice.

If you have specific questions regarding a drug’s safety, side effects, usage, warnings, etc., you should contact your doctor or pharmacist, or refer to the individual drug monograph details found on the FDA.gov or RxList.com websites for more information.

You may also report negative side effects of prescription drugs to the FDA by visiting the FDA MedWatch website or calling 1-800-FDA-1088.

References


Merck Sharp & Dohme Corp. Singulair Product Information.

http://www.singulair.com/

Chattem, Inc., a Sanofi Company. Xyzal Product Information.

https://www.xyzal.com/
CONTINUE SCROLLING FOR RELATED SLIDESHOW

Health Solutions From Our Sponsors