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14 Cards in this Set
- Front
- Back
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Brand names for theophylline are?
(must have prescription) |
Bronkodyl
Elixophyllin So-Bid Theo-Dur Quibron-T Uniphyl |
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Two classes of bronchodilators are?
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xanthine derivatives and
beta-agonists |
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The net drug effect of all bronchodilators (beta-agonists, anticholinergics, xanthine derivatives, indirect-acting antiasthmatics, and corticosteroids) is
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relaxation of bronchial smooth muscle
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Theophylline is one of the most commonly used of all?
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xanthine derivatives as well as of all bronchodilators
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Theophylline is most frequently used in the treatment of?
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chronic respiratory disorders
asthma |
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Theophylline may also be used for the relief of?
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mild to moderate acute asthmatic attacks.
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Avoid if hypersensitivity to?
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xanthines
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Avoid if patient has?
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tacharrhythmias
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Common therapeutic range in blood is?
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10 to 20 micrograms/ml...levels ABOVE THIS ARE TOXIC AND FATAL!
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Toxicity of xanthine derivatives in elderly...what are symptoms?
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restlessness
insomnia irritability tremors nausea vomiting restlessness due to possible hypoxia |
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Encourage elderly not to ______ dose?
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double...never omit doses...contact doctor if this occurs
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Xanthines work by?
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inhibiting phosphodiesterase...phosphodiesterase breaks down cAMP, which is needed to relax smooth muscle
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Theophylline is the most common; what is the parenteral form of theophylline?
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aminophylline
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Xanthine derivatives are contraindicated in patients with a history of?
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GI tract disorders or peptic ulcer disease
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