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• A drug used to improve breathing in people who are short of breath. It belongs to the family of drugs called bronchodilators or respiratory smooth muscle relaxants.

  National Cancer Institute - Cite This Source - This Definition
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  Cite Definition for theophylline

  American Psychological Association (APA)

  theophylline. (n.d.). Dictionary of Cancer Terms. Retrieved June 10, 2023, from website: http://www.expertglossary.com/definition/theophylline.

  Chicago Manual of Style (CMS)

  theophylline. www.cancer.gov. Dictionary of Cancer Terms. National Cancer Institute. http://www.expertglossary.com/definition/theophylline (accessed: June 10, 2023).

  Modern Language Association (MLA)

  "theophylline." Dictionary of Cancer Terms. National Cancer Institute. 10 June. 2023 http://www.expertglossary.com/definition/theophylline.

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