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Theophylline |
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theophylline [‚thē·ə′fī‚lēn]
(organic chemistry) C7H8N4O2·H2O Alkaloid from tea leaves; bitter-tasting white crystals slightly soluble in water and alcohol, melts at 272°C; used in medicine. Theophylline (1,3-dimethylxanthine), an alkaloid of the group of urines; small quantities are found in tea leaves. In pharmacological activity, theophylline is similar to theobromine, from which it differs in its more pronounced diuretic action. Theophylline dilates the blood vessels of the heart and the bronchial musculature and excites the central nervous system. It is prescribed internally, in powder form, and rectally, as suppositories. It is a constituent of Teofedrin and other compound preparations. It is obtained by chemical synthesis from dimethylurea and ethyl cyanoacetate. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | Lab controls were faulty in that "the assay method for Elixophyllin KI Elixir is deficient in that system suitability requirements are not specified and the procedure for evaluating analytical data . Lab controls were faulty in that "the assay method for Elixophyllin KI Elixir is deficient in that system suitability requirements are not specified and the procedure for evaluating analytical data . Tablets, capsules, liquid Numerous brand names, Prescription including Constant-T, Resbid, Slo-bid Elixophyllin, Slo-Phyllin. |
Elixophyllin |
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