The Corpse Reviver No. 1 is featured in Harry Craddock's Savoy Cocktail Book. A secondary recipe, creatively named Corpse Reviver No. 2, is also featured within the book. Harry advised No. 1 "to be taken before 11am, or whenever steam and energy are needed". In other words, whenever hung over but to be honest, a spirit-forward, cognac/brandy/Calvados cocktail is probably the last thing you will be needing at 10am the morning after a heavy night on the beverages!