The Pill That Actually Dissolves Was Perfected in Kalamazoo

Here’s a Michigan first hiding in your medicine cabinet: the idea that a pill should reliably dissolve inside you, instead of passing straight through, was cracked by a Kalamazoo doctor.

In the early 1880s, medicines were mostly liquids and powders. The few pills that existed were often so hard they didn’t break down in the stomach at all — they just went right through the patient, doing no good. Dr. William Upjohn, a University of Michigan-trained physician and a born tinkerer, set out to fix this. Working in his attic, he developed what he called a “friable” pill — built up in thin layers so it was solid enough to swallow but soft enough to crush under your thumb, and reliable enough to deliver an exact dose. He filed for a patent in 1884 and received it in 1885, then invented a machine to mass-produce the pills.

To win over skeptical doctors, Upjohn pulled off one of the great marketing stunts in medicine: he mailed thousands of physicians a small pine board along with his competitors’ rock-hard pills and his own, and dared them to hammer both into the wood to see which crumbled. A thumb crushing a pill became the company’s logo.

In 1886 he founded the Upjohn Company in Kalamazoo. It grew into a pharmaceutical powerhouse that anchored the city for over a century — a legacy that lives on in Kalamazoo’s pharmaceutical industry to this day.