Abstract Introduction Drugs are responsible for only 0.1%-2% of acute pancreatitis. Whilst the link between some drugs and pancreatitis is well-established, (steroids, azathioprine), we found only one previous case-report linking testosterone replacement therapy (TRT) to pancreatitis. We report a case of acute pancreatitis secondary to TRT. Case Report A 55-year-old man presented with history of upper abdominal pain. He denied alcohol/illicit drug use, no recent infection/changes to medication. His amylase was raised; CT scan confirmed acute pancreatitis. When interrogating his past medical history for a cause, we learned of his bilateral orchidectomy, radiotherapy and chemotherapy for seminoma in 1993, following which, he was on Testogel. He was managed conservatively, with success. Discussion Although drug-related causes of pancreatitis are uncommon, management is easy with identification/cessation of the causative agent. Therefore, a detailed medical history (including exposure to toxins and medication changes) is important. In our patient, an extensive surgical, medical and social history, CT and bloods excluded other main causes of acute pancreatitis i.e. alcohol, gallstones/infection, hypertriglyceridemia, toxins and trauma. The WHO database of “drugs suspected to cause pancreatitis” includes evidence from published literature, mostly case reports. Testosterone does not feature amongst the 525 drugs mentioned. Conclusion Our anecdotal evidence may provide a possible link between TRT and pancreatitis, however further research is needed to ascertain a definite causality. Reporting such potential links is important due to increased TRT use recently as treatment for female-to-male sex transition and young adults for performance enhancement, as well as remaining the primary treatment for hypogonadism.