A true salt of theophylline; it has mild diuretic, myocardial stimulating vasodilator, and bronchodilator actions, with the same uses as theophylline, but is better absorbed and less irritating. ... Synonym: choline theophyllinate. ... (05 Mar 2000) ... 
(oks-trif´ә-lēn) the choline salt of theophylline, used as a bronchodilator.