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What Is It
Allegra-D is used in the treatment of nervous and emotional conditions to help control anxiety. It can also be used to help control anxiety and produce sleep before surgery.
Some antihistamin
es are used in the treatment of chronic urticaria, which is a persistent hive-like rash.
Antihistamines may also be used for other conditions as determined by your doctor.
Some antih
istamine preparations are available only with your doctor's prescription. Others are available without a prescription. However, your doctor may have special instructions on the proper dose of the medi
cine for your medical condition.
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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 seek medical attention immediately.
Check wi
th your doctor immediately if any of the following side effects occur:
Incidence rare
- Chest tightness ; feeling of warmth, redness of the face, neck, arms and occasionally, upper ches
t; large, hive-like swelling on face, eyelids, lips, tongue, throat, hands, legs, feet, sex organs; shortness of breath, difficult or labored breathing
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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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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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Proper Use of This Medicine
Antihistamines are used to relieve or prevent the symptoms of your medical problem. Take them only as directed. Do not take more of them and do not take them more often than recommended on the label,
unless otherwise directed by your doctor. To do so may increase the chance of side effects.
Dosing¡X
- The dose of an antihistamine will be different for different patients. Follow y
ur doctor's orders or the directions on the label. The following information includes only the average doses of antihistamines. If your dose is different, do not change it unless your doctor tells you
to do so.
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Special warnings about this medication
Allegra-D may cause some people to become drowsy or less alert than they are normally. Even if taken at bedtime, it may cause some people to feel drowsy or less alert on arising. Some antihistamines a
re more likely to cause drowsiness than others. Drowsiness is less likely with cetirizine, and rare with desloratadine and loratadine. Make sure you know how you react to the antihistamine you are tak
ing before you drive, use machines, or do anything else that could be dangerous if you are not alert.
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