>From the PDR, Silvadine Cream contains a solution of 1% micronized silver 
>sulfadiazine in a cream base of white petrolatum with a few ingreadiants as 
>preservatives.  I know that the white petrolatum is water soluble which is 
>different than using the other petrolatum.  I think that a water soluble base 
>such as this is what really helps it to work.
I also noted that the cream can be used for other than burns, as it does kill 
common skin bacteria as well as other organisms.
Ken