Who we are.

One device. No equivalent.

In 1964, a team at the University of Heidelberg in Germany built a swallowable radio transmitter that could measure gastric acid without a nasogastric tube. Nothing like it had existed before. More than sixty years later, nothing like it exists now.

The Heidelberg pH Capsule is a Class I medical device that measures real-time gastric acid secretion and reacidification capacity. It is the only commercially available system of its kind legally marketed in the United States. It has been validated in more than 140 peer-reviewed studies at institutions including the University of Heidelberg, the University of Michigan, and UCSF, and used in pharmaceutical research by Pfizer, Merck, Genentech, and GlaxoSmithKline.

Heidelberg Medical, Inc. manufactures every capsule and every system from its facility in north Georgia. Under new leadership, the company has a single purpose: making direct gastric acid measurement available to every clinician and patient who needs it.

What we’re here to do

For decades, medicine moved away from measuring stomach acid and toward suppressing it. More than 27 million Americans are currently prescribed proton pump inhibitors, yet no standard clinical method exists to assess whether they actually need acid suppression. The Heidelberg test provides objective, real-time data that can help clinicians answer that question.

We believe the first step in treating a problem is measuring it. That’s what this device does. That’s all we do.