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. Author manuscript; available in PMC: 2020 Mar 1.
Published in final edited form as: Psychopharmacology (Berl). 2018 Sep 29;236(3):1031–1041. doi: 10.1007/s00213-018-5046-x

Table 2:

Data obtained from the demand curve analyses (n=8).

Drug/Drug Mixture α (95% CIs) Q0 (±SEM) R2
saline 22.6 × 10−5 (20.8, 24.4) 14.3 (2.3) 0.96
caffeine 19.1 × 10−5 (17.8, 20.5)* 21.6 (3.3) 0.93
methylone 4.2 × 10−5 (3.8, 4.7)* 47.6 (3.4)* 0.75
MDPV 1.2 × 10−5 (0.9, 1.4)* 74.7 (29.3) 0.59
10:1 methylone:caffeine 3.5 × 10−5 (3.1, 4.0)* 30.1 (3.0)# 0.79
3:1 methylone:caffeine 2.6 × 10−5 (2.3, 2.8)*,# 37.5 (3.3) 0.86
10:1 MDPV:caffeine 1.5 × 10−5 (1.3, 1.8)* 50.3 (10.7) 0.70
3:1 MDPV:caffeine 1.3 × 10−5 (1.1, 1.6)* 47.4 (7.0) 0.59
*

indicates that value for the drug/drug mixture is significantly different from saline.

#

indicates that value for the mixture is significantly different from the cathinone alone.