c19early.org
Nicotine for COVID-19
1 study with 213 patients
Serious outcome risk
Nicotine
Control
No significant improvements are seen in meta-analysis to date.
COVID-19 Nicotine studies · October 2026
Outcome (studies)
Improvement
Relative risk · 95% CI
All studies (1)−5%
Mortality (1)−5%
RCTs (1)−5%
Late (1)−5%
00.511.5+
← Nicotine
reduces risk
Increased
risk →
Jun 9
2022
Labro et al., Intensive Care Medicine, doi:10.1007/s00134-022-06721-1 Nicotine patches in patients on mechanical ventilation for severe COVID-19: a randomized, double-blind, placebo-controlled, multicentre trial
5% higher mortality (p=0.78) and 6% higher progression (p=1). RCT 218 critically ill COVID-19 patients showing no benefit of transdermal nicotine patches. The trial tested a hypothesis that emerged early in the pandemic based on observations of lower COVID-19 rates among smokers, however alternative..