08-03-2009, 12:28 PM
A 52 yr old man with Chronic pulmonary disease who has been taking theophylline for 14 years now requires treatment for hypertension, peptic ulcer and tuberculosis. After 2 weeks of therapy he has a toxic plasma theophylline concentration. which of the following drugs is most likely to have cause d the theophylline toxicity
A CIMETIDINE
B HYDROCHOROTHIAZIDE
C PRAZOSIN
D RIFAMPIN
A CIMETIDINE
B HYDROCHOROTHIAZIDE
C PRAZOSIN
D RIFAMPIN