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
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:
Gas-liquid chromatographic determination of acephylline in urine.
J Zuidema et al.
Journal of chromatography, 182(3-4), 445-447 (1980-06-13)
Revista medico-chirurgicala a Societatii de Medici si Naturalisti din Iasi, 94(3-4), 581-586 (1990-10-01)
Some esters of 7-theophyllinylacetic acid were synthetized, characterized physicochemically and tested for their anti-inflammatory properties. As compared to indomethacin, reference anti-inflammatory drug, all synthetized compounds were less toxic. The anti-inflammatory properties are influenced by the nature of the ester group
Biopharmaceutics & drug disposition, 2(2), 177-184 (1981-04-01)
A sensitive and specific method for the estimation of theophylline-7-acetic acid in plasma by high performance liquid chromatography is described. Acidified plasma is extracted with chloroform-n-butanol (85: 15), back extracted with phosphate buffer (0.5 mmol-1, pH 6.5), and finally the
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