Anyone heard of / used these?

What do they contain? Apparently if a pup is considered at 'high risk' then it'll be given a two doses of the second vaccine rather than the first then the second (which covers more diseases and must be given after 10 weeks) two weeks later.

I'm not sure exactly JG - only that a neighbour has recently purchased a 15 week old pup and has been told she had been given the 6 in 1 injection...