Roy, A K Induction of theophylline toxicity and inhibition of clearance rates by ranitidine. [electronic resource] - The American journal of medicine Apr 1989 - 513-4 p. digital Publication Type: Letter ISSN: 0002-9343 Standard No.: 10.1016/0002-9343(89)90375-6 doi Subjects--Topical Terms: HumansRanitidine--pharmacologyTheophylline--antagonists & inhibitors