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Related to Uniphyl: Accolate, Theochron


(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.



(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.

References in periodicals archive ?
theophylline (Quibron-T, Respbid, Slo-Bid Treats and prevents the Gyrocaps, Slo-Phyllin, Theo-24, Theobid symptoms of asthma, Duracpas, Theo-Dur, Theolair,, Theo-Time, chronic bronchitis and Uni-Dur, Uniphyl) emphysema.
The company says it is the first to receive clearance for a generic version of Uniphyl tablets, 400 mg (Purdue Frederick Co.).