Drug metabolism and disposition: the biological fate of chemicals, 14(2), 267-270 (1986-03-01)
The metabolic transformation of the bronchospasmolytic agent doxophylline (2-(7'-theophyllinemethyl)-1,3-dioxolane) was studied in vitro with phenobarbital-induced rat liver microsomal fraction containing the NADPH-generating system. Doxophylline was poorly metabolized as 95% of the recovered material was parent compound. The major metabolite resulted:
International journal of tissue reactions, 14(1), 31-36 (1992-01-01)
It is assumed that theophylline (THEO) and its xanthinic derivatives inhibit lung phosphodiesterase (PDE) and block adenosine receptors in the induction of bronchodilatation. Since the theophyllinic compound ambroxol-theophylline-7-acetic acid (ATA) has been shown in vivo to be a sound bronchodilator
Journal of controlled release : official journal of the Controlled Release Society, 58(3), 251-269 (1999-04-01)
Theophylline-polyrotaxane conjugates were synthesized by coupling theophylline with alpha-cyclodextrins (alpha-CDs) in the polyrotaxane. The polyrotaxane is a molecular assembly in which many alpha-CDs are threaded onto a poly(ethylene glycol) (PEG) chain capped with L-phenylalanine (L-Phe). Theophylline-7-acetic acid was activated by
In an open study, 50 patients suffering from chronic obstructive pulmonary disease in an acute infectious phase were treated with ambroxol theophyllinacetate. The drug was given orally in a dosage of 100 mg BID for ten days. Viscosimetric data showed
Journal of pharmaceutical and biomedical analysis, 43(3), 973-982 (2006-10-19)
Three methods are developed for the determination of two multicomponent mixtures containing guaiphenesine (GU) with salbutamol sulfate (SL), methylparaben (MP) and propylparaben (PP) [mixture 1]; and acephylline piperazine (AC) with bromhexine hydrochloride (BX), methylparaben (MP) and propylparaben (PP) [mixture 2].
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