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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.]


(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]


(ˌθi əˈfɪl in, -ɪn)

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


n teofilina
References in periodicals archive ?
* diuretics, or "water pills," that increase urine flow, including bumetanide (Bumex), forosemide (Lasix), and theophylline (Bronkodyl)
Researchers found that the hydrocarbons present in cigarette smoke may interact with drugs such as clozapine (Clozaril), fluvoxamine (Luvox), theophylline (Theo-Dur, Bronkodyl), and inhaled corticosteroids, reducing the drugs' effectiveness.
Some of them are Aerolate, Bronkodyl, Elixophyllin, Quibron, Slo-phyllin, Theo-dur, Theolair, Theospan and Uniphyl.