ü Beta-Agonists . Figure 8-1 shows the general xanthine structure and the structures of theophylline (1,3-dimethylxanthine) and caffeine (1,3,7-trimethylxanthine). The nurse instructs the client to limit the intake of xanthine-containing foods such as chocolate, cola, cocoa, tea, and coffee. Read more about the prescription drug XANTHINE DERIVATIVES - ORAL. at present, three major classes of bronchodilators, β(2)-adrenoceptor (AR) agonists, muscarinic receptor antagonists, and xanthines are available and can be used individually or in combination. The topic of Xanthine Medications will likely be covered in the Pharmacology courses of your school program. All content is free. The airway response to the inhalation of four alkyl xanthines was studied in 17 subjects with moderately severe asthma (mean FEV1 1.19 litres, 42% predicted). Bronchodilator actions of xanthine derivatives administered by inhalation in asthma. 19) • Prototype Drugs: – Theophylline-Theo-dur – Aminophylline . Learn faster with spaced repetition. It is the responsibility of the Respiratory Therapist to learn about the drug class. When administering the methylxanthine theophylline, the nurse can expect: A. With bronchodilator types being B-agonists, anticholinergic and xanthine derivatives. Study asthma - bronchodilator Xanthine drugs flashcards from georgie mair's bristol university class online, or in Brainscape's iPhone or Android app. Hopefully, this study guide can help make that process easier for you. We also have a guide on Adrenergic Bronchodilators that I think you will enjoy. Bronchodilators: ü Xanthines Derivatives . Theophylline (dimethylxanthine) has been used to treat airway diseases for more than 80 years. Medscape's clinical reference is the most authoritative and accessible point-of-care medical reference for physicians and healthcare professionals, available online and via all major mobile devices. Indications are based on acute and chronic pulmonary disease and dysfunction. BRONCHODILATOR CLASSIFICATIONS. Xanthine Derivatives (Refer to Prototype List in syllabus, pg. How Do These Drugs Work? • Relieve Bronchoconstriction • Cause bronchodilatation . Option D: Theophylline is a methylxanthine bronchodilator. 5. ... Bronchodilators: Beta-Agonists Mechanism of Action. Begins at the specific receptor stimulated The xanthine alkaloids—caffeine, theobromine, and theophylline—are closely related compounds found in a variety of plants indigenous to several continents. Bronchodilators Xanthine derivatives Beta-agonists Anticholinergics Antileukotriene agents Corticosteroids Mast cell stabilizers Sympathomimetic Agents ie epi, ephedrine, isoproterenol, terbutaline. Cushley MJ, Holgate ST. Because of their methyl attachments, these agents are often referred to as methylxanthines. Decreased pulmonary function B. Mechanism of Action Specific xanthine agents. 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