Zinc acetate has been proposed as the most ideal salt for zinc lozenges since acetate binds to zinc ions very weakly. Zinc gluconate is another salt that has been frequently used in zinc lozenges.

High dose zinc acetate lozenges shortened the duration of common-cold associated nasal discharge by 34%, nasal congestion by 37%, scratchy throat by 33%, and cough by 46%, according to a meta-analysis ...

According to a meta-analysis of three randomized controlled trials zinc acetate lozenges may increase the rate of recovery from the common cold three fold. On the fifth day, 70% of the zinc lozenge ...

There is no significant difference between zinc acetate lozenges and zinc gluconate lozenges regarding their efficacy in shortening the duration of common colds according to a meta-analysis. There is ...

According to a meta-analysis of three randomized controlled trials published in Open Forum Infectious Diseases, zinc acetate lozenges may increase the rate of recovery from the common cold three fold.