AdvertisementBooze Restores Vigor, Nine Of 10 Charlatans AgreeAugust 10, 2013Anna HaenschfacebookEmailDrink Burdock Blood Bitters to settle your stomach, calm your nerves, restore youthful vigor — and maybe get a little bit tipsy. These bitters, like many tonics of the time, contained up to 20 percent alcohol. (Courtesy of the National Library of Medicine)