It’s called Myrkl (pronounced miracle, not Merkel, like the long-serving German chancellor) and a pack of 30 tablets can be bought online for £30 ($36). It works, the company claims, by speeding up the rate at which the body breaks down alcohol over a period of 12 hours. So, in theory, if you take the tablets before an evening’s entertainment then you should wake up the next morning with a clear head. The drink was a pint of lager. Then, on arrival at the event, at 7:30pm, I was greeted with a glass of lovely fizz. I’m reliably informed it...