Urine Catecholamine Excretion in Long-Term Oral Theophylline Use

Young DS Effects of Drugs on Clinical Laboratory Tests, 3rd edn. Washington, DC: AACC Press, 1990

Atuk NO Blaydes MC Westervelt FB Wood JE Effect of aminophylline on urinary excretion of epinephrine and norepinephrine in man. Circulation 1967; 35: 745–53

Whyte KF Addis GJ Whitesmith R Reid JL Failure of chronic theophylline therapy to alter circulating catecholamines. Eur J Resp Dis 1987; 70: 221–8