Theophylline and caffeine are drugs that ease breathing and stimulate respiration (methylxanthines). These tests measure the amount of theophylline or caffeine in the blood to help establish an appropriate dose and to maintain a therapeutic level.
Disclaimer: The information provided here should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. The information is provided solely for educational purpose and should not be considered a substitute for medical advice.
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