theophylline


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the·oph·yl·line

 (thē-ŏf′ə-lĭn)
n.
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.]

theophylline

(ˌθɪəˈfɪliːn; -ɪn; θɪˈɒfɪlɪn)
n
(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]

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:
Noun1.theophylline - a colorless crystalline alkaloid derived from tea leaves or made synthetically; used in medicine as a bronchial dilator
bronchodilator - a drug that relaxes and dilates the bronchial passageways and improves the passages of air into the lungs
Translations

theophylline

n teofilina
References in periodicals archive ?
However, 1,7-DMU showed a strong signal that was enough to interfere with the measurement of 1,3-DMU in the m/z 195[arrow right]180 transition, and 1,7-DMX showed a much lower intensity in the m/z 179[arrow right]164 transition than did theophylline.
For instance, that same AMA report notes that 25 years ago patients with asthma were told to take the drug theophylline.
2 mEq/L Specimen collection: Trough, before next dose Amitriptyline 120-250 ng/mL* 400 ng/mL* Imipramine 150-300 ng/mL 400 ng/mL Nortriptyline 50-150 ng/mL 200 ng/mL Protriptyline 75-250 ng/mL 400 ng/mL Doxepin 110-250 ng/mL* 400 ng/mL* *Parent drug plus demethylated metabolite OTHER DRUGS Cyclosporin 100-500 ng/mL Tacrolimus 5-20 mcg/L trough >25 mcg/L Theophylline 10-20 mcg/mL >25 mcg/mL Digoxin 0.
For women requiring therapeutic levels of theophylline to maintain asthma control, measurement of theophylline levels is recommended.
Scientists say caffeine and theophylline, compounds found in each, may help block cell growth and blood clotting.
New research suggests that caffeine and theophylline, both found in coffee, tea, cola drinks and chocolate, may help block cell growth and blood clotting.
The cells were incubated for 24 hours, and then treated with 40 [micro]ls fluoxetine or 40 [micro]ls of theophylline along with 1 micromolar of dexamethazone or ICZ to control a P450 enzyme system.
The retrospective study did, however, reconfirm the beneficial effect of the methylxanthines caffeine and theophylline.
Examples of such drugs include nicotinic acid (niacin), theophylline (used for asthma.
The patient's medical history included mild asthma with flare-ups approximately monthly, for which he had used theophylline.
A treating physician ordered that the boy receive theophylline intravenously.
Erythromycin-theophylline interaction can cause an increase in theophylline blood levels, leading to toxicity characterized by nausea, vomiting, cardiovascular instability, and seizures.