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. Author manuscript; available in PMC: 2016 Jan 31.
Published in final edited form as: Drug Alcohol Depend. 2014 Dec 9;147:122–129. doi: 10.1016/j.drugalcdep.2014.11.028

Table 2.

Serum Naltrexone Levels and 6-beta-Naltrexol Levels in Patients who Received Oral Naltrexone with Active vs. Placebo Injection Naltrexone

Serum Naltrexone Levels 6-beta-Naltrexol Levels
Active median (IQR) Placebo median (IQR) Active median (IQR) Placebo median (IQR)
Week 1 16.5 (12.9, 32.1) 6.0 (1.2, 12.7) 13.4 (9.2, 26.7) 6.0 (1.2, 12.3)
Week 2 20.1 (11.5, 29.7) 5.1 (3.3, 8.2) 13.2 (8.1, 24.2) 5.1 (3.3, 8.2)
Week 3 23.3 (12.8, 35.2) 6.0 (0.4, 15.3) 19.2 (10.6, 32.4) 5.1 (0.3, 13.9)
Week 4 23.7 (9.0, 66.7) 14.7 (3.5, 24.3) 20.3 (7.9, 57.6) 14 (3.5, 24.0)