Source:http://www4.wiwiss.fu-berlin.de/dailymed/resource/drugs/302
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Clemastine fumarate (Tablet)
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| dailymed-instance:dosage |
DOSAGE SHOULD BE INDIVIDUALIZED ACCORDING TO THE NEEDS AND RESPONSE OF THE PATIENT.<br/>Clemastine Fumarate Tablets 1.34 mg: The recommended starting dose is one tablet twice daily. Dosage may be increased as required, but not to exceed six tablets daily.<br/>Clemastine Fumarate Tablets 2.68 mg: The maximum recommended dosage is one tablet three times daily. Many patients respond favorably to a single dose which may be repeated as required, but not to exceed three tablets daily.
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| dailymed-instance:descripti... |
Clemastine belongs to the benzhydryl ether group of antihistaminic compounds. The chemical name is (+)-(2R)-2-[2-[[(R)-p-Chloro-��-methyl-��-phenylbenzyl]-oxy]ethyl]-1-methylpyrrolidine fumarate (1:1). CHC1NOCHOM.W. 459.97 Each tablet for oral administration contains 1.34 or 2.68 mg of clemastine fumarate. Inactive Ingredients: Colloidal Silicon Dioxide, Corn Starch, Lactose, Povidone, Pregelatinized Starch and Stearic Acid.
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| dailymed-instance:clinicalP... |
Clemastine fumarate is an antihistamine with anticholinergic (drying) and sedative side effects. Antihistamines appear to compete with histamine for cell receptor sites on effector cells. The inherently long duration of antihistaminic effects of clemastine fumarate has been demonstrated in wheal and flare studies. In normal human subjects who received histamine injections over a 24-hour period, the antihistaminic activity of clemastine reached a peak at 5-7 hours, persisted for 10-12 hours and, in some cases, for as long as 24 hours. Pharmacokinetic studies in man utilizingH andC labeled compound demonstrates that: clemastine is rapidly and nearly completely absorbed from the gastrointestinal tract, peak plasma concentrations are attained in 2-4 hours, and urinary excretion is the major mode of elimination.
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Usage in Nursing Mothers: Because of the higher risk of antihistamines for infants generally and for newborns and prematures in particular, antihistamine therapy is contraindicated in nursing mothers.<br/>Usage in Lower Respiratory Disease: Antihistamines should not be used to treat lower respiratory tract symptoms including asthma. Antihistamines are also contraindicated in the following conditions: Hypersensitivity to clemastine fumarate or other antihistamines of similar chemical structure. Monoamine oxidase inhibitor therapy (see Drug Interactions section).
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| dailymed-instance:supply |
Clemastine Fumarate Tablets 2.68 mg are white, round, scored tablets debossed with "93" and "308". Tablets are packaged in bottles of 100. Store at controlled room temperature, between 20and 25C (68and 77F) (see USP). Dispense in a tight, light-resistant container as defined in the USP/NF, with a child-resistant closure. Rev. H 8/2003 Manufactured By: TEVA PHARMACEUTICALS USA Sellersville, PA 18960
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| dailymed-instance:precautio... |
Clemastine fumarate should be used with caution in patients with: history of bronchial asthma, increased intraocular pressure, hyperthyroidism, cardiovascular disease, and hypertension.<br/>Drug Interactions: MAO inhibitors prolong and intensify the anticholinergic (drying) effects of antihistamines.
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| dailymed-instance:overdosag... |
Antihistamine overdosage reactions may vary from central nervous system depression to stimulation. Stimulation is particularly likely in children. Atropine-like signs and symptoms: dry mouth; fixed, dilated pupils; flushing; and gastrointestinal symptoms may also occur. If vomiting has not occurred spontaneously the conscious patient should be induced to vomit. This is best done by having him drink a glass of water or milk after which he should be made to gag. Precautions against aspiration must be taken, especially in infants and children. If vomiting is unsuccessful gastric lavage is indicated within 3 hours after ingestion and even later if large amounts of milk or cream were given beforehand. Isotonic and 1/2 isotonic saline is the lavage solution of choice. Saline cathartics, such as milk of magnesia, by osmosis draw water into the bowel and therefore, are valuable for their action in rapid dilution of bowel content. Stimulants should not be used. Vasopressors may be used to treat hypotension.
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Clemastine fumarate
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| dailymed-instance:fullName |
Clemastine fumarate (Tablet)
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| dailymed-instance:adverseRe... |
Transient drowsiness, the most common adverse reaction associated with clemastine fumarate, occurs relatively frequently and may require discontinuation of therapy in some instances.<br/>Antihistaminic Compounds: It should be noted that the following reactions have occurred with one or more antihistamines and, therefore, should be kept in mind when prescribing drugs belonging to this class, including clemastine. The most frequent adverse reactions are italicized.
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| dailymed-instance:warning |
Antihistamines should be used with considerable caution in patients with: narrow angle glaucoma, stenosing peptic ulcer, pyloroduodenal obstruction, symptomatic prostatic hypertrophy, and bladder neck obstruction.<br/>Usage in Children: Safety and efficacy of clemastine fumarate have not been established in children under the age of 12 years.<br/>Usage in Pregnancy: Experience with this drug in pregnant women is inadequate to determine whether there exists a potential for harm to the developing fetus.<br/>Usage with CNS Depressants: Clemastine has additive effects with alcohol and other CNS depressants (hypnotics, sedatives, tranquilizers, etc.).<br/>Usage in Activities Requiring Mental Alertness: Patients should be warned about engaging in activities requiring mental alertness such as driving a car or operating appliances, machinery, etc.<br/>Usage in the Elderly (approximately 60 years or older): Antihistamines are more likely to cause dizziness, sedation, and hypotension in elderly patients.
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| dailymed-instance:indicatio... |
Clemastine Fumarate Tablets 1.34 mg are indicated for the relief of symptoms associated with allergic rhinitis such as sneezing, rhinorrhea, pruritus, and lacrimation. Clemastine Fumarate Tablets 2.68 mg are indicated for the relief of symptoms associated with allergic rhinitis such as sneezing, rhinorrhea, pruritus, and lacrimation. Clemastine Fumarate Tablets 2.68 mg are also indicated for the relief of mild, uncomplicated allergic skin manifestations of urticaria and angioedema. It should be noted that clemastine fumarate is indicated for the dermatologic indications at the 2.68 mg dosage level only.
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| dailymed-instance:name |
Clemastine fumarate
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