Clarinex (desloratadine) is an antihistamine used to treat the symptoms of allergies, such as sneezing, watery eyes, and runny nose. Clarinex is also used to treat skin hives and itching in people with chronic skin reactions. I would think that any person with dizziness that doesn't resolve in a matter of weeks or months, and whose cause can't be determined, should have an MRI, although MRIs rarely reveal a cause for dizziness. Seasonal Allergic Rhinitis. CLARINEX-D ® 24 HOUR Extended Release Tablets is indicated for the relief of the nasal and non-nasal symptoms of seasonal allergic rhinitis, including nasal congestion, in adults and adolescents 12 years of age and older. Common side effects of Clarinex include dizziness, muscle pain, and urinary tract infections. Less common side effects are indigestion, bronchitis, and increased appetite. CLARINEX® (desloratadine) Tablets. DESCRIPTION. CLARINEX (desloratadine) Tablets are light blue, round, film-coated tablets containing 5 mg desloratadine, an antihistamine, to be administered orally. Post Nasal Drip Pain Clarinex Dizziness Cause. Often, antibiotics to fight the infection will make the earache go away rapidly, but the In fact, the surgical opening can heal so fast that it often closes before the infection and the. Applies to desloratadine: oral syrup, oral tablet, oral tablet disintegrating. Along with its needed effects, desloratadine (the active ingredient contained in Clarinex) may cause some unwanted effects. Symptoms can be relieved with medications, including: prescription antihistamines, such as desloratadine (Clarinex) medications that can reduce dizziness and nausea, such as meclizine (Antivert) How to use Clarinex. Read the Patient Information Leaflet if available from your pharmacist before you start taking desloratadine and each time you get a refill. Clarinex (Desloratadine) Synonyms: Desloratine, Dloratin, Aerius, Alavert, Claritin, Desloratidine, Loratadine Clarinex (Desloratadine) is an antihistamine used to treat the symptoms of hay fever and other allergic conditions such as watery eyes, runny nose, itching eyes, and sneezing. It may also be used to treat hives.