It works by blocking a certain natural Background: As regards central nervous system (CNS) effects there are three types of antihistamines
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Interactions
Stop using Allegra and get emergency medical help if you think you have
Common side effects include headaches, feeling sleepy, dry mouth, feeling sick and
Side effects that usually do not require medical attention (report to your care team if they continue or are bothersome Common side effects of Children's Allegra Allergy may include: headache; back pain; or
While it’s generally well tolerated, it may cause side effects for some people
Precautions Before taking fexofenadine , tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies
Contraindications
signs of an ear infection --fever, ear pain or full feeling, trouble hearing, drainage from the ear Find everything you need to know about Allegra-D 24 Hour Allergy & Congestion, including what it is used for, warnings, reviews, side effects, and interactions
However, many people have no side effects or only have minor side effects
cold symptoms Common side effects of Allergy Relief (Fexofenadine HCl) may include: headache; back pain; or
However, many people have no side effects or only have minor side effects
new or worsening cough; pain; or
Tips
Call your doctor for medical advice about side effects
Other side effects of Allegra-D 12 Hour
Simethicone may also be used for other conditions as determined by your doctor