Allen Institute for Artificial Intelligence
supp.ai logo
supp.ai

Discover Supplement-Drug Interactions

Disclaimer: The information contained herein should NOT be used as a substitute for the advice of an appropriately qualified and licensed physician or other health care provider. The tool is not a substitute for the care provided… (more)
Last Updated: 3 years ago

Possible Interaction: Caffeine and Ephedrine

supplement:

Caffeine

Research Papers that Mention the Interaction

The ingestion of a combination of caffeine (C) and ephedrine (E) has been reported to prolong exercise time to exhaustion during cycle ergometry at 85% VO2max.
Aviation, space, and environmental medicine  •  1999  |  View Paper
BACKGROUND Ingesting a combination of caffeine and ephedrine (C+E) has been shown to raise metabolic heat production and body temperature.
Aviation, space, and environmental medicine  •  1999  |  View Paper
Animal and human studies have suggested a thermogenic synergism between ephedrine (E), a beta-agonist, and caffeine (C), an adenosine antagonist, which may be suitable for the treatment of obesity.
In this dose ratio, ephedrine and caffeine exerted a supra-additive synergism, whereas the thermogenic effects of the other two combinations were only additive.
Metabolism: clinical and experimental  •  1991  |  View Paper
These studies indicate that relatively mild doses of dietary methylxanthines in combination with ephedrine can raise daily energy expenditure of those predisposed to obesity, mainly by correcting their defective thermogenic response to food.
International journal of obesity  •  1986  |  View Paper
Ephedrine produced a significant BPM dose response from 0.5 to 5.0 µM. Caffeine increased BPM only at a toxic level of 250 µM. Adding caffeine to PEA or higenamine but not ephedrine further increased BPM.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association  •  2015  |  View Paper
ICAf was stable and ECAf increased by 11 (4-18%; P=0.005) with administration of ephedrine while SskinO₂ did not change.
British journal of anaesthesia  •  2014  |  View Paper
The thermogenic combination of ephedrine plus caffeine is minimally effective, and adverse effects are usually transient.
Drugs  •  2012  |  View Paper
Caffeine enhanced the effect of ephedrine on platelet function, and phenylpropanolamine amplified the inhibitory effect of aspirin on platelet aggregation.
Blood coagulation & fibrinolysis : an international journal in haemostasis and thrombosis  •  2010  |  View Paper
Caffeine and ephedrine increase sympathetic activity and induce weight loss, of which 25% is due to increased metabolic rate and 75% is due to a reciprocally decreased food intake.
Medical hypotheses  •  2009  |  View Paper
Concomitant ingestion of caffeine slowed the absorption rate of ephedrine , which is mainly related to the amount of the former in the absorption compartment.
Different models showed that the simultaneous administration of caffeine , or the amount of caffeine in the absorption compartment, was associated with a slower rate of absorption of ephedrine.
British journal of clinical pharmacology  •  2005  |  View Paper
Show More