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. Author manuscript; available in PMC: 2016 Apr 1.
Published in final edited form as: Addict Behav. 2014 Nov 26;43:11–17. doi: 10.1016/j.addbeh.2014.11.023

Table 1.

Percent of Combined Users Who Reported Various Consequences of Combined Energy drink and Alcohol Use

N (%)
Feeling jittery, restless, on edge, or nervous 65 (71.1%)
Trouble sleeping/insomnia 73 (46.2%)
Increased alertness or energy followed by sudden drop in energy 55 (34.8%)
Stomach pain or irritation 53 (33.5%)
Feeling irritable 48 (30.4%)
Irregular heartbeat/racing heart 46 (29.1%)
Headaches 45 (28.5%)
Muscle twitching 29 (18.4%)
Had to go to doc/clinic/ED 10 (6.3%)