Caffeine-herbal ephedra combination increases resting energy expenditure, heart rate and blood pressure.

@article{Vukovich2005CaffeineherbalEC,
  title={Caffeine-herbal ephedra combination increases resting energy expenditure, heart rate and blood pressure.},
  author={Matthew D. Vukovich and Rana Schoorman and Chris Heilman and Peyton Jacob and Neal L. Benowitz},
  journal={Clinical and experimental pharmacology & physiology},
  year={2005},
  volume={32 1-2},
  pages={47-53}
}
1. The purpose of the present study was to determine whether the consumption of an acute dose of caffeine and Ma Huang increases resting energy expenditure (REE), heart rate (HR) and blood pressure (BP) over a 3 h period. 2. A randomized, double-blind cross-over study was performed evaluating the acute effects of caffeine (150 mg)/herbal ephedra (Ma Huang; 20 mg ephedra alkaloids) versus a placebo. A total of eight healthy subjects (four males and four females) with a mean (+/-SD) age of 23.4… CONTINUE READING