Endocrinologic Abnormalities Observed Among Total Joint Arthroplasty Patients Using "Artri King" and Related Over-the-Counter Supplements: A Cautionary Tale from a Safety Net Hospital.

: Artri King is an over-the-counter supplement previously marketed to treat joint pain and arthritis. In 2022, the Food and Drug Administration (FDA) issued a product warning after it discovered Artri King contained hidden ingredients including dexamethasone, diclofenac, and methocarbamol. Given the risk of adrenal insufficiency in the context of long-term dexamethasone use, we sought to report on adverse endocrinologic outcomes observed among patients endorsing the use of these supplements who presented to an orthopedic surgery clinic at a county safety net hospital. : Preoperative patients presenting from November 2023 to June 2024 were screened for supplement use. Data were collected including patient demographics and comorbidities. Serum cortisol, adrenocorticotropic hormone (ACTH), and C-reactive protein (CRP) were obtained to assess adrenal function. Recommendations from Endocrinology regarding perioperative stress dose corticosteroids were also recorded. Standard descriptive statistics were employed to report our results. : In total, 13 patients (6 female and 7 male) were identified with a mean age of 62.8 years (range of 47-79 years) and an average BMI of 32.03 kg/m (range of 22.93-45.81 kg/m). The average duration of use was 10.2 months (range of 1-36 months). One patient developed new-onset diabetes mellitus while taking supplements. Nine patients had low cortisol levels (<6.7 mcg/dL), necessitating referral to Endocrinology, and two were found to have concomitantly low ACTH levels (<5 pg/mL). Endocrinology recommended perioperative stress dose corticosteroids for all nine patients with low cortisol. : Artri King and similar supplements may lead to severe endocrinological consequences. We recommend routine screening and continued management of patients who endorse supplement use.