The original Coca-Cola really did contain cocaine.

When Atlanta pharmacist John Pemberton stirred up his first batch of Coca-Cola syrup in 1886, he was essentially bottling the cutting edge of Victorian medicine. Coca leaf extract — the raw source of cocaine — was a fashionable ingredient, appearing in tonics, wines, and patent remedies across Europe and America. Pemberton's drink was marketed as a nerve tonic and cure for headaches, and the coca leaf was a genuine, functional part of the formula.
The cocaine content was never massive — early estimates suggest each serving contained only a few milligrams — but it was real, and it was there by design. The name itself advertised the fact: "Coca" for the coca leaf, "Cola" for the kola nut, another stimulant that supplied caffeine. Consumers in the 1880s and 1890s were not being deceived. They were being sold exactly what the label implied.
Public attitudes toward cocaine shifted sharply in the late 1890s and early 1900s, driven by growing alarm over addiction and a wave of new regulation. The Coca-Cola Company responded by switching to "decocainized" coca leaf extract around 1903 — a process that strips out the cocaine alkaloid while preserving other flavor compounds. The Stepan Company in New Jersey still performs this extraction today, operating under a DEA license, making it the only legal commercial importer of coca leaves in the United States.
The formula kept the leaf; it lost the drug. That single industrial tweak, made quietly over a century ago, is why the world's most recognized beverage can still truthfully claim a botanical link to cocaine — and why your afternoon soda has a paper trail that runs through a DEA-licensed factory in New Jersey.