Nix, D E The effect of low-dose cimetidine (200 mg twice daily) on the pharmacokinetics of theophylline. [electronic resource] - Journal of clinical pharmacology Aug 1999 - 855-65 p. digital Publication Type: Clinical Trial; Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't ISSN: 0091-2700 Standard No.: 10.1177/00912709922008399 doi Subjects--Topical Terms: AdultAgedArea Under CurveCimetidine--pharmacologyCircadian RhythmCross-Over StudiesDose-Response Relationship, DrugDrug InteractionsEnzyme Inhibitors--pharmacologyHumansMaleMetabolic Clearance RateMiddle AgedSingle-Blind MethodSmokingTheophylline--bloodVasodilator Agents--pharmacokinetics