{Reference Type}: Case Reports {Title}: Glycopyrrolate-induced polyuria: An unexpected side effect. {Author}: Behera SK;Agarwal A;Singh A;Pandit VR;Kannauje PK; {Journal}: J Neurosci Rural Pract {Volume}: 14 {Issue}: 3 {Year}: 2023 Jul-Sep 暂无{DOI}: 10.25259/JNRP_73_2023 {Abstract}: Polyuria is urine output exceeding 3 L/d in adults, primarily due to solute and water diuresis. In a hospital setting, mannitol and diuretics commonly lead to polyuria. We have found an interesting association of polyuria with glycopyrrolate; to the best of our knowledge, no case is reported in the literature. Here, we are describing a case of Guillain-Barre Syndrome, which developed polyuria during the hospital stay, which was secondary to glycopyrrolate.