why povidone iodine preferred over iodine as anti infective agents?
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Antiseptics like povidone iodine have been used since ancient times to prevent infection and sterilize tools.
There is actually some controversy in the scientific community as to whether or not antiseptics work when used directly on skin wounds[1], but tradition, intuition, and the World Health Organization agree they are probably a good idea[3].
The reasoning against using antiseptics for wound care is that they will kill not only bacteria but cells as well. Since povidone iodine is only mildly cytotoxic[2], it can be used or disused for wound treatment based on personal preference.
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