Abstract:
RATIONALE:Only a small percentage of individuals seeking treatment for their marijuana use achieves sustained abstinence, suggesting more treatment options are needed. OBJECTIVES:We investigated the effects of baclofen (study 1) and mirtazapine (study 2) in a human laboratory model of marijuana intoxication, withdrawal, and relapse. METHODS:In study 1, daily marijuana smokers (n = 10), averaging 9.4 (+/-3.9) marijuana cigarettes/day, were maintained on placebo and each baclofen dose (60, 90 mg/day) for 16 days. In study 2, daily marijuana smokers (n = 11), averaging 11.9 (+/-5.3) marijuana cigarettes/day, were maintained on placebo and mirtazapine (30 mg/day) for 14 days each. Medication administration began outpatient prior to each 8-day inpatient phase. On the first inpatient day of each medication condition, participants smoked active marijuana (study 1: 3.3% THC; study 2: 6.2% THC). For the next 3 days, they could self-administer placebo marijuana (abstinence phase), followed by 4 days in which they could self-administer active marijuana (relapse phase); participants paid for self-administered marijuana using study earnings. RESULTS:In study 1, during active marijuana smoking, baclofen dose-dependently decreased craving for tobacco and marijuana, but had little effect on mood during abstinence and did not decrease relapse. Baclofen also worsened cognitive performance regardless of marijuana condition. In study 2, mirtazapine improved sleep during abstinence, and robustly increased food intake, but had no effect on withdrawal symptoms and did not decrease marijuana relapse. CONCLUSIONS:Overall, this human laboratory study did not find evidence to suggest that either baclofen or mirtazapine showed promise for the potential treatment of marijuana dependence.
journal_name
Psychopharmacology (Berl)journal_title
Psychopharmacologyauthors
Haney M,Hart CL,Vosburg SK,Comer SD,Reed SC,Cooper ZD,Foltin RWdoi
10.1007/s00213-010-1888-6subject
Has Abstractpub_date
2010-08-01 00:00:00pages
233-44issue
2eissn
0033-3158issn
1432-2072journal_volume
211pub_type
杂志文章abstract::The intensity of the head-twitch response and the 5-hydroxytryptamine (5-HT) syndrome (tremor, fore-paw treading, head-weaving and hind-limb abduction) was measured in male CFLP mice following IP injection of 5 mg/kg 5-methoxy-N,N-dimethyltryptamine (5-MeODMT). The results of separate experiments carried out at 1.5-h ...
journal_title:Psychopharmacology
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