all betadine products completely inactivated the virus at povidone-iodine concentrations of greater than or equal to 0.5 % ( 10- to 20-fold dilutions of stock ) except for betadine lubricating antiseptic gel , which required 2.5 % for efficacy ( 1:2 dilution ) .
C0032857
povidone-iodine
C0003205
antiseptic