In the summer of 1893, Caleb Bradham was a pharmacist in New Bern, North Carolina, mixing carbonated drinks behind his drugstore counter. His most popular concoction — a blend of sugar, water, caramel, lemon oil, nutmeg, and kola nuts — had no formal name. Customers just called it "Brad's Drink." It was a fine name for a small-town soda fountain. It was a terrible name for anything else.
Bradham knew this. He was a pharmacist, not a branding consultant, but he had the instinct to understand that "Brad's Drink" was a ceiling, not a floor. The name communicated ownership (Brad's) and category (drink) and absolutely nothing else. It had no energy, no aspiration, no hook. It was the verbal equivalent of a handwritten sign taped to a glass jar.
In 1898, Bradham renamed his drink Pepsi-Cola. Five years later, he trademarked it. The name would outlast the man, the drugstore, the original recipe, and the original company, eventually anchoring a $91 billion corporation that sells beverages in more than 200 countries.
## The Pepsin Connection
Where did "Pepsi" come from? Bradham derived it from pepsin, the digestive enzyme. In the 1890s, pharmacists routinely marketed their sodas as health aids — digestive tonics, nerve calmers, headache cures. Coca-Cola, Bradham's chief competitor, was named after two of its original ingredients: coca leaves and kola nuts. The naming convention of the era was pharmaceutical: tell the customer what's in the bottle, and imply that it will fix whatever ails them.
Bradham believed his drink aided digestion. Whether it actually did is historically dubious — sugar water with caramel and nutmeg is not a recognised gastroenterological treatment — but the claim was standard practice for the period. "Pepsi" was a truncation of "pepsin" that sounded friendlier, less clinical, and more memorable. The "-Cola" suffix anchored the drink in the emerging cola category, which Coca-Cola had already defined.
The name "Pepsi-Cola" was therefore a compound: a medical root truncated for euphony, joined to a category descriptor borrowed from the competition. It was derivative, unapologetic, and effective. By 1903, Bradham had sold 7,968 gallons of syrup and moved his operation out of the drugstore.
## The Sound of Pepsi
Strip away the etymology and listen to the word: PEP-see. Two syllables, trochaic stress (strong-weak), beginning with a voiceless bilabial plosive — the "p" — which is one of the most energetic sounds in English. Phoneticians describe plosives as "burst" consonants: they require a brief buildup of air pressure behind the lips, followed by a sharp release. The word "pep" itself means energy and liveliness, and this is not a coincidence — the sound is the meaning.
David Placek has observed that the most effective brand names create "phonetic priming" — the sound of the word prepares the brain to expect certain qualities before any conscious processing occurs. "Pepsi" primes for energy, sharpness, and effervescence. The double "p" across the word (PeP-si) creates a popping rhythm that mirrors the physical experience of carbonation. You can almost hear the bubbles.
Compare this to "Brad's Drink." The "br" onset is heavier — a voiced bilabial followed by an alveolar approximant — and "drink" terminates with a consonant cluster (nk) that stops the word dead. "Brad's Drink" thuds. "Pepsi" pops. The phonetic difference is the difference between a small-town soda fountain and a global brand.
Rory Sutherland has argued that the best brand names are "synesthetic" — they evoke sensory experiences beyond the auditory. Pepsi does this. The sharp plosives suggest the crack of a bottle cap. The short vowels suggest quickness and refreshment. The sibilant "s" suggests the hiss of escaping carbonation. The entire word is a compressed sensory experience of opening and drinking a cold soda. No focus group identified this. No linguist was consulted. But Caleb Bradham, a pharmacist with a good ear, chose a name that sounds like the product it describes.
## Dropping the Cola
For decades, the full name was Pepsi-Cola. The "-Cola" suffix was both an anchor and a chain. It anchored the product in a recognised category — consumers knew what cola meant — but it also chained the brand to that category, making diversification linguistically awkward. Pepsi-Cola potato chips? Pepsi-Cola sports drinks? The compound name limited the brand's range.
The solution was gradual truncation. By the 1960s, advertising increasingly emphasised "Pepsi" alone. The Pepsi Generation campaign of 1963 — one of the most influential ad campaigns in history — barely mentioned "Cola" at all. By the 1990s, the parent company had renamed itself PepsiCo, preserving the core syllables while dropping the category descriptor entirely.
This truncation pattern is remarkably common in brand evolution. International Business Machines became IBM. Federal Express became FedEx. Kentucky Fried Chicken became KFC. The pattern is always the same: the descriptive element is dropped as the brand outgrows its original category, leaving behind a shorter, more flexible, more abstract identifier. "Pepsi" works for cola, for snacks, for sports drinks, for a corporate holding company. "Pepsi-Cola" works only for cola.
Scott Galloway has noted that "the most valuable thing a brand can do is earn the right to abbreviate." Abbreviation signals ubiquity — if you can say "Pepsi" without "Cola" and everyone knows what you mean, you've achieved the kind of brand recognition that money alone cannot buy. Bradham's original name was already short. The market made it shorter, and each truncation made it more valuable.
## The $91 Billion Second Place
PepsiCo's market capitalisation exceeded $200 billion in 2024, and the Pepsi brand alone is valued at approximately $21 billion by Interbrand. The company has diversified far beyond cola — Frito-Lay, Gatorade, Quaker Oats, and Tropicana are all PepsiCo brands — but the core name remains the foundation.
There is an irony here worth noting. Pepsi has spent the better part of a century as the number-two cola. The Pepsi Challenge, launched in 1975, demonstrated in blind taste tests that consumers consistently preferred Pepsi over Coca-Cola. And yet Coca-Cola has maintained its market share lead for decades. The taste advantage didn't translate to a sales advantage.
Why? One theory is the name itself. "Coca-Cola" has four syllables, a rolling rhythm, and the alliterative "C" that makes it one of the most distinctive brand names ever created. Alliterative names — Coca-Cola, Best Buy, PayPal, Dunkin' Donuts — enjoy a measurable recall advantage, estimated at 10-15% in studies published in the Journal of Advertising Research. "Pepsi" is phonetically excellent. "Coca-Cola" is phonetically transcendent. In the naming wars, second place is still worth $91 billion, but first place is worth even more.
## The Lesson of Brad's Drink
Caleb Bradham's journey from "Brad's Drink" to "Pepsi" contains one of the cleanest naming lessons in business history. The original name was ego-driven — it centered the maker, not the consumer. "Brad's Drink" asks: who is Brad? "Pepsi" asks: how does this taste? The shift from maker-centric to experience-centric naming is the shift from a drugstore counter to a global brand.
Bradham also demonstrated that etymological precision is unnecessary. Most Pepsi drinkers have never heard of pepsin. They don't know the name derives from a digestive enzyme, and they don't care. What they respond to is the sound — the pop, the fizz, the sharp little burst of energy that happens when you say the word. The etymology gave Bradham a starting point. The phonetics gave him a brand.
The final lesson is about timing. Bradham renamed his drink in 1898 — five years after he created it, but decades before it became nationally distributed. He renamed it when the stakes were low, the costs were minimal, and the existing brand equity was negligible. This is the optimal moment for a rename: early enough that nothing is lost, late enough that you know what you're building. Too many founders wait until their brand is worth millions before attempting a rename, at which point the cost of change has become prohibitive. Bradham changed the name when the only person who cared about "Brad's Drink" was Brad.