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4 Cards in this Set
- Front
- Back
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Indications of Antihistamines
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Management of nasal allergies, seasonal, or perennial allergic rhinitis (hay fever) and some of the typical symptoms of the common cold; also useful in the treatment of allergic reactions, motion sickness, Parkinson's disease, and vertigo; also used as sleep aids sometimes
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Contraindications of Antihistamines
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Known drug allergy; not used as sole drug therapy during acute asthmatic attacks; narrow-angle glaucoma, cardiac disease, kidney disease, hypertension, bronchial asthma, chronic obstructive pulmonary disease, peptic ulcer disease, seizure disorders, benign prostatic hyperplasia, and pregnancy
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Adverse Effects of Antihistamines
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Drowsiness, dysrhythmias, hypotension, palpitations, syncope, sedation, dizziness, muscular weakness, paradoxical excitement, restlessness, nervousness, seizures, nausea, vomiting, diarrhea, constipation, hepatitis, dryness of mouth, nose, and throat; urinary retention; vertigo; visual disturbances; tinnitus; headache
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Loratadine
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Claritin; nonsedating; taken once daily; side effects of high doses are drowsiness, headache, and fatigue; relieves symptoms of seasonal allergic rhinitis as well as chronic urticaria; OTC drug; pregnancy category B
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