Why the study?
Does the combination of caffeine and nicotine alter cardiovascular parameters compared to their individual effects in healthy volunteers?
Population
n=10 healthy volunteers
Comparison
Caffeine and nicotine vs Placebo, caffeine alone, nicotine alone, and the…
Design
RCT, randomized design, double-blind, placebo-controlled
Authors
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Combined caffeine-nicotine use attenuates orthostatic pressor response below additive expectations; extends evidence on differential interactions during sympathoadrenal activation.
Does the combination of caffeine and nicotine alter cardiovascular parameters compared to their individual effects in healthy volunteers?
Caffeine and nicotine exert additive pressor effects at rest but less than additive effects during sympathoadrenal stimulation.
Smits et al. (1993) studied this question.
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