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Side Effects of This Medicine
SIDE EFFECTS that may occur while taking this medicine include nausea, dry mouth, indigestion, nervousness, dizziness, trouble sleeping, or headache. If they continue or are bothersome, check with you
r doctor. If you notice other effects not listed above, contact your doctor, nurse, or pharmacist.
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Cautions
Antihistamines may cause dryness of the mouth, nose, and throat. Some antihistamines are more likely to cause dryness of the mouth than others . For temporary relief of mouth dryness, use sugarless ca
ndy or gum, melt bits of ice in your mouth, or use a saliva substitute. However, if your mouth continues to feel dry for more than 2 weeks, check with your medical doctor or dentist. Continuing drynes
s of the mouth may increase the chance of dental disease, including tooth decay, gum disease, and fungus infections.
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How should you take this medication?
Fexofenadine comes as a capsule to take by mouth. It usually is taken once or twice a day with food or milk. Follow the directions on your prescription label carefully, and ask your doctor or pharmaci
st to explain any part you do not understand. Take fexofenadine exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor<
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What Is It
Antihistamines are used to relieve or prevent the symptoms of hay fever and other types of allergy. They work by preventing the effects of a substance called histamine, which is produced by the body.
Histamine can cause itching, sneezing, runny nose, and watery eyes. Also, in some persons histamine can close up the bronchial tubes (air passages of the lungs) and make breathing difficult.
Some of the antihistamines are also used to prevent motion sickness, nausea, vomiting, and dizziness. In patients with Parkinson's disease, diphenhydramine may be used to decrease stiffness and tremor
s. Also, the syrup form of diphenhydramine is used to relieve the cough due to colds or hay fever.
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Drug Interactions
Seldane, an antihistamine related to Allegra, has been implicated in dangerous interactions with the common antibiotic erythromycin, the antifungal medication ketoconazole (Nizoral), and several simil
ar drugs. Allegra poses no such risks. It is also safe for people with liver disease.
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Symptoms of overdose may include:
Clumsiness or unsteadiness; convulsions (seizures); drowsiness (severe); dryness of mouth, nose, or throat (severe); feeling faint; flushing or redness of face; hallucinations (seeing, hearing,
or feeling things that are not there); shortness of breath or troubled breathing ; trouble in sleeping
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