Related Experiment Video
Updated: Jul 4, 2026

Identification of the Source of Secreted Proteins in the Kidney by Brefeldin A Injection
Published on: November 10, 2021
Verdoglobinuria
1Emergency Medicine, Drexel University College of Medicine, Philadelphia, Pennsylvania 19102, USA. mgreenbe@drexelmed.edu
Abstract:
We present a case of green urine caused by ingestion of the cyclic antidepressant amitryptilline and a brief review of the causes for green urine or verdoglobinuria. The possible etiologies for green urine are diverse, however, pharmaceuticals are the most common etiologic agents. While the frequency of occurrence of green urine remains unknown, an awareness of the potential etiologies is essential for the clinical toxicologist to develop a useful differential diagnosis for the problem.
Related Concept Videos
Serum Studies: Renal Function Tests
Urine Studies I: Urinalysis
Hyperglycemia
Nephrotic Syndrome II : Assessment and Medical Management
Diabetic Nephropathy
Nephrotic Syndrome I : Introduction

