the·oph·yl·line

(thē-ŏf′ə-lĭn)

A colorless crystalline alkaloid, C₇H₈N₄O₂, derived from tea leaves or made synthetically, used as a bronchodilator primarily to treat asthma and chronic obstructive pulmonary disease.

[New Latin thea, the tea plant (ultimately from Dutch thee); see tea + phyll(o)- + -ine.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

theophylline

(ˌθɪəˈfɪliːn; -ɪn; θɪˈɒfɪlɪn)

(Pharmacology) a white crystalline slightly water-soluble alkaloid that is an isomer of theobromine: it occurs in plants, such as tea, and is used to treat asthma. Formula: C7H8N4O2. See also xanthine²

[C19: from theo(bromine) + phyllo- + -ine²]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

the•o•phyl•line

(ˌθi əˈfɪl in, -ɪn)

n.

a crystalline alkaloid, C₇H₈N₄O₂, an isomer of theobromine extracted from tea leaves or produced synthetically, used in medicine chiefly to relieve bronchial spasms.

[1890–95; theo-, comb. form representing New Latin thea tea + -phyll + -ine²]

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

theophylline - a colorless crystalline alkaloid derived from tea leaves or made synthetically; used in medicine as a bronchial dilator

Elixophyllin, Slo-Bid, Theobid

bronchodilator - a drug that relaxes and dilates the bronchial passageways and improves the passages of air into the lungs

Translations

theophylline

n teofilina

Mentioned in

References in periodicals archive

Deleted were: acetyclysteine 20% solution, inhalation, oral 10 ml; desoximetasone 0.25%, topical cream, 60 gin; diflunisal 500 mg, tablet, oral, 60; and theophylline 100 and 200 mg, tablet, extended-release, oral, 100.

CMS updates list of federal upper limits. (RX: Generic Drugs)

The objective of the present study was the development of a quantitative liquid homogeneous immunoassay specific for theophylline based on the specific uncompetitive inhibition of inosine 5'-monophosphate dehydrogenase (IMPDH) by mycophenolic acid (MPA).

The use of inosine 5'-monophosphate dehydrogenase (IMPDH) in the development of a new liquid homogeneous enzyme immunoassay technology

But theophylline, which is used much less frequently today than in the past, also has a number of anti-inflammatory effects.

Management Program Key to Asthma Control During Pregnancy

Theobromine, theophylline and paraxanthine were detected on analysis of Deerfield Sunset's sample by the Horserace Forensic Laboratory at Newmarket.

Greyhounds: `I'll just get on with it' says McKenna

Some of these agents are well-documented inhibitors of hepatic metabolism of theophylline, caffeine, and warfarin.

Quinolones: a practical review of clinical uses, dosing considerations, and drug interactions

CNS Stimulants -- theophylline products, caffeine, Trental, Ritalin, Cylert

Managing disruptive behavioral symptoms: today's do's and dont's

Many parents and doctors believe that theophylline, a drug frequently used to treat asthma, causes behavioral changes.

Theophylline and behavior

Theophylline is related chemically to the natural metabolite xanthine.

Xanthines: the side door bronchodilators

KEYWORDS: Caffeine, Theophylline, Apnea, Infants, Prematurity.

Comparison of Caffeine versus Theophylline for apnea of prematurity

Children considered for stepping up to the next therapy should show symptoms of mild persistent asthma that the authors recommended controlling with low-dose ICS, leukotriene receptor antagonist (LTRA), or low-dose theophylline with as-needed SABA.

NEW GUIDANCE: Managing poorly controlled asthma in children