Zinc Lozenges And The Common Cold: A Meta-analysis Comparing Zinc Acetate And Zinc Gluconate, And The Role Of Zinc Dosage
Notes for this study:
||Overall Mean difference (% of placebo duration) and 95% CI: -33.31 (-45.28, -21.34). Acetate: -40.49 (-50.17, -30.81). Gluconate: -28.36 (-50.05, -6.68)
|Number of Subjects
A meta-analysis was conducted on placebo-controlled trials using zinc lozenges for naturally acquired common colds using a dose of over 75 mg daily.
7 Trials were included, 3 using zinc acetate, and 4 using zinc gluconate. All trials were double-blind. There was a statistically significant reduction in overall cold duration and in both zinc gluconate and acetate trials, with zinc acetate being somewhat more effective.