2/27/2008: I was told that natural gamma-gobulin was a fraction product as it did contain blood. Then I was relieved when the synthetic product appeared, but, as it was new, I wanted to know if anyone has a link or knows the info as to what the side-effects to both the natural and the synthetic product are. Information as to how and when the synthetic product was developed and by whom would be appreciated as well. Thanks to all of you that stay up late enough to read this and take the time to answer! end message. 21stCentury.