A couple of months ago, a good friend of mine was going through a horrible spate of bad highs that were proving to be completely random and over a period of about 2 weeks, were causing her serious problems. It seemed that no matter what she did, it just didn’t stop them from coming time and time again.

After a number of lines of investigation the only possibility that was left as an option was that the insulin she was using at the time was a dud batch. It’s not something that has happened to me but I have wondered a couple of times just how the pharmaceutical companies manage to ensure that the insulin they distribute is the…

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