Zafirlukast (Oral Route)

Free

E-newsletter

Subscribe to Housecall

Our weekly general interest
e-newsletter keeps you up to date on a wide variety of health topics.

Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

• Cough or hoarseness
• Fever or chills
• Lower back or side pain
• Pain
• Painful or difficult urination

• Abdominal or stomach pain
• Clay-colored stools
• Dark urine
• Diarrhea
• Dizziness
• Headache
• Itching
• Loss of appetite
• Nausea
• Rash
• Unpleasant breath odor
• Unusual tiredness or weakness
• Vomiting of blood
• Yellow eyes or skin

• Attack, assault, or force
• Attempts at killing oneself
• Discouragement
• Dry mouth
• Fear or nervousness
• Feeling sad or empty
• Fever with or without chills
• General feeling of tiredness or weakness
• Hyperventilation
• Irregular heartbeats
• Irritability
• Lack of appetite
• Large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
• Loss of interest or pleasure
• Restlessness
• Seeing, hearing, or feeling things that are not there
• Shakiness in the legs, arms, hands, or feet
• Shortness of breath
• Sleeplessness
• Sore throat
• Sores, ulcers, or white spots on the lips or in the mouth
• Tiredness
• Trembling or shaking of the hands or feet
• Trouble with concentrating
• Trouble with sleeping
• Unable to sleep
• Unusual bleeding or bruising

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

• Acid or sour stomach
• Back pain
• Belching
• Difficulty with moving
• Heartburn
• Indigestion
• Joint pain
• Lack or loss of strength
• Muscle aching or cramping
• Muscle pains or stiffness
• Stomach discomfort or upset
• Swollen joints
• Vomiting

• Hives or welts
• Redness of the skin

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

Copyright © 2013 Thomson Healthcare Inc. All rights reserved. Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes.