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Related Experiment Video

Updated: Feb 16, 2026

Comparative Analysis of Automatic Fecal Analyzer versus Direct Wet Smear Microscopy for Detecting Parasitic Infections in Stool Samples

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Published on: April 25, 2025

Ghost tablet in feces.

Masaya Iwamuro¹, Yosuke Morishita², Haruo Urata³

¹Department of Gastroenterology and Hepatology Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama Japan.

Journal of General and Family Medicine

|December 22, 2017

Summary

This summary is machine-generated.

A patient found a ghost tablet in feces, but analysis revealed no potassium or chloride, despite a prescription for potassium chloride capsules. This challenges typical medication identification methods.

Keywords:

ghost pill ghost tablet stool

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Area of Science:

Gastroenterology
Pharmaceutical Analysis
Medical Case Reports

Background:

Medication adherence and identification are crucial in patient care.
Unusual presentations of undissolved medication remnants can occur.

Purpose of the Study:

To report a unique case of a "ghost tablet" identified in fecal matter.
To investigate the elemental composition of the identified fecal tablet remnant.

Main Methods:

Case report of a patient presenting with a fecal tablet.
Elemental composition analysis using energy-dispersive X-ray spectroscopy (EDX).

Main Results:

A "ghost tablet" was identified in the patient's fecal matter.
Energy-dispersive X-ray spectroscopy (EDX) analysis detected no potassium or chloride in the remnant.
The patient was prescribed potassium chloride capsules.

Conclusions:

The "ghost tablet" did not contain expected potassium or chloride, suggesting potential formulation or dissolution issues.
This case highlights the limitations of visual identification and elemental analysis in confirming medication presence.
Further investigation into pharmaceutical formulation and gastrointestinal transit is warranted.