Hmm, if you really want to re-qualifiy in Germany, you might be able to transfer parts of your degree. They might recognize some of the courses you've taken, like biochemistry and other purely scientific stuff. It'd depend a lot on how your courses were structured in the states and which school you'd apply to here in Germany. Or they might not recognise it at all but the chance is there.

But you'd definitely have to take all the law stuff and courses that pertain to being a pharmacist and Germany/Europe.