Why cocaine looked medicinal
In the 1880s, doctors had few reliable treatments for pain, fatigue, or digestive complaints. Cocaine, derived from coca leaves, seemed promising because it could produce alertness and a sense of energy. Those effects made it appear capable of helping patients who felt weak or unwell—even when they did not establish that it treated the underlying cause of their symptoms.
Freud explored the drug himself and wrote about its possible medical uses. He recommended it for a range of complaints, including stomach problems. In that era, a physician might judge a remedy by whether it seemed to relieve symptoms; the risks of dependence and lasting harm were not yet understood as they are today.
A stimulant is not a stomach treatment
Cocaine acts on the nervous system, changing the way nerve cells handle chemical signals involved in alertness and reward. A person may feel more energetic or less bothered by discomfort for a time, but that sensation is not the same as repairing a digestive problem. Cocaine can also have serious effects on the heart and brain, and repeated use can lead to addiction.
The distinction between temporary relief and treatment mattered less in a period when drug testing and safety standards were rudimentary. A striking effect could look like evidence that a medicine worked, especially when doctors had limited ways to compare outcomes or detect harms that emerged over time.
From experiment to warning
Cocaine later gained a well-defined medical role as a local anesthetic: it can numb tissue by blocking nerve signals. That specific use did not make it a general remedy for stomach aches. The episode illustrates how a drug’s visible effects can invite broad claims before its benefits and risks are carefully separated. A patient might leave the doctor’s office feeling stimulated; that did not mean the cause of the pain had been treated.
