Sour (cocktail) gin, lemon juice, and sugar. Adding carbonated water to this turns it into a gin fizz. It was popular during the 1940s, and Kevin Starr includes it in "an array of drinks (the gin sour, the whiskey sour, the Gin Rickey, the Tom Collins, the Pink Lady, the Old Fashioned) that now seem period pieces, evocative of another era." White Lady (also known as a Delilah, or Chelsea Side-car) is essentially a sidecar made with gin in place of brandy. What makes it different from the simple gin sour is the switching of sugar for triple sec. The cocktail sometimes
Active ingredient Active ingredient An active ingredient (AI) is the ingredient in a pharmaceutical drug or pesticide that is biologically active. The similar terms active pharmaceutical ingredient (API) and bulk active are also used in medicine, and the term active substance may be used for natural products. Some medication products may contain more than one active ingredient. The traditional word for the API is pharmacon or pharmakon (from , adapted from pharmacos) which originally denoted a magical substance or drug. The terms active constituent or active principle are often chosen when referring to the active substance of interest in a plant (such