Nicotine patch for cannabis withdrawal symptom relief: a randomized controlled trial

Area of Science:

• Addiction Medicine
• Psychopharmacology
• Neuroscience

Background:

• Tetrahydrocannabinol (THC) and nicotine share similar effects on negative affect (NA).
• Cannabis dependence (CD) is often associated with withdrawal symptoms, including increased NA.
• Individuals with CD may or may not be nicotine dependent, influencing withdrawal management strategies.

Purpose of the Study:

• To investigate if a 7-mg nicotine patch (NP) reduces NA-related cannabis (CAN) withdrawal symptoms.
• To assess the efficacy of NP in reducing NA during 15 days of CAN abstinence.
• To compare NP effects in non-tobacco smokers (NTS) and light tobacco smokers (LTS) with CD.

Main Methods:

• 127 cannabis-dependent adults (aged 18-35) were randomized to receive either a 7-mg nicotine patch (NP) or a placebo patch (PP).
• Participants underwent 15 days of biochemically verified cannabis abstinence, with monetary incentives for compliance.
• Negative affect and other withdrawal symptoms were assessed every 48 hours.

Main Results:

• The nicotine patch (NP) significantly reduced negative affect (NA) symptoms compared to the placebo patch (PP) over 15 days of cannabis abstinence.
• These reductions in NA and cannabis withdrawal symptoms were consistent across participants regardless of their tobacco smoking status.
• The findings controlled for variables including age, baseline THC concentration, and baseline NA levels.

Conclusions:

• Nicotine patch (NP) administration demonstrates efficacy in attenuating negative affect (NA) associated with cannabis withdrawal.
• This study provides initial evidence for NP as a potential intervention for individuals with cannabis use disorder (CUD) who are not heavy tobacco users.
• The results suggest that nicotine's effects on NA may be leveraged to manage cannabis withdrawal symptoms.