What does the box say? Do you have to make it with alcohol?
Because I bought the same sort of Swedish Bitters that had to be mixed manually (also with the 2 week period). But I also had to add alcohol which I didn’t do. A few weeks later I had serious cramps and diarrhea (I have no problem with other bitters I bought online). I stopped using these home made bitters and started using enzymes because they have a similar function.
My advice: Be careful with home made Swedish Bitters. If you need it immediately, buy other bitters (online) or give enzymes a try.