Efficacy and tolerability of zinc acetate for treatment of chronic refractory cough: pilot randomised futility trial.
Aparna BalasubramanianJanet T HolbrookBrendan J CanningLoretta G QueMario CastroBarry J MakeLinda RogersMichael F BuskAlexis ReaAshley Alesia McCookJiaxian HeMeredith C McCormackRobert A WisePublished in: ERJ open research (2023)
We observed no benefit of zinc therapy over placebo on cough symptoms or quality of life and conclude that larger trials of zinc for chronic cough are not warranted.