Cannabis use among adults who smoke tobacco: Relations with switching from combusted cigarettes to e-cigarettes or very low nicotine cigarettes.

What Was Tested

This randomized controlled trial looks at Therapeutic nicotine (patch, non-peptide).

Evidence is mixed regarding whether cannabis use impairs tobacco smoking cessation.

This study tests the hypothesis that people who co-use tobacco and cannabis are less likely to switch to an alternative tobacco product when asked to do so.

Who Took Part

By PubMed's age tags, the people studied were young adults, adults and middle-aged adults, both men and women.

Secondary data analysis of a mixed design with a within-subjects factor (active nicotine patch vs. placebo patch) and a between-subjects factor (study product).

A washout week was followed by a second switch week during which participants used the other patch type.

How the Study Was Run

In design terms this was a randomized, double-blind and placebo-controlled study.

The participants were allocated by chance, so the Therapeutic nicotine (patch, non-peptide) group and the comparison group should start out alike.

As a double-blind Therapeutic nicotine (patch, non-peptide) study, the assignments were hidden from both participants and investigators until the end.

Some participants received a placebo instead of Therapeutic nicotine (patch, non-peptide), giving a reference point.

Adults not motivated to quit smoking who smoke ≥ 5 cigarettes/day.

What Was Measured

This study tests the hypothesis that people who co-use tobacco and cannabis are less likely to switch to an alternative tobacco product when asked to do so.

Topics PubMed links to this paper include Cigarette Smoking, Electronic Nicotine Delivery Systems, Marijuana Smoking, Marijuana Use, Nicotine, Smoking Cessation and Tobacco Products.

Author keywords: Cannabis, E-cigarettes, Switching and Tobacco cigarettes.

What This Means in Plain Language

The paper is a randomized, double-blind and placebo-controlled study of Therapeutic nicotine (patch, non-peptide).

Results are reported in around 4 sentences of the abstract; we leave them to the paper itself rather than summarise them.

The publication is from 2025 (Drug and alcohol dependence), a journal based in Ireland.

More context: the Therapeutic nicotine (patch, non-peptide) compound page, all human trials.