by Eric Christianson | Jan 14, 2026 | Hematology and Immunology Case Studies
In this case scenario, we discuss the “double trouble” of using PPIs and metformin and their effects on vitamin B12. Mrs. J is a 68-year-old woman with type 2 diabetes and gastroesophageal reflux disease (GERD). She has been taking metformin 1,000 mg twice...
by Eric Christianson | Dec 21, 2025 | Endocrine Case Studies
In this case scenario, we outline a situation where biotin causes thyroid problems. It highlights the importance of recognizing the use of OTC and supplement medications. A 46-year-old woman with a history of primary hypothyroidism presents to her primary care clinic...
by Eric Christianson | Dec 10, 2025 | Psychiatry and Addiction Medicine Case Studies
I recently came across a case scenario of drug induced akathisia. It is important to remember that aripiprazole is one of the most common causes of this adverse effect. Here’s the case – LY is a 72-year-old man with a 10-year history of Parkinson’s disease...
by Eric Christianson | Dec 7, 2025 | Dermatology, ENT, Ophthalmology Case Studies, Neurology, Pain, and Musculoskeletal Case Studies
Lamotrigine is an important medication to remember. This was actually a primary reason why I started this blog. Here’s that case scenario from the past. Having a lack of understanding of lamotrigine and its adverse effects has led to patients being harmed and...
by Eric Christianson | Nov 26, 2025 | Cardiovascular Case Studies
Atrial fibrillation (AF) is one of the most commonly tested topics across pharmacy board exams. Whether you’re preparing for the NAPLEX, BCPS, BCACP, or another certification exam, mastering rate control, rhythm control, anticoagulation, and key clinical decision...
by Eric Christianson | Nov 23, 2025 | Psychiatry and Addiction Medicine Case Studies
A 45-year-old woman with a history of bipolar I disorder was recently hospitalized for a manic episode. Following stabilization, her psychiatrist initiated lithium carbonate at 300 mg twice daily for mood stabilization. Her baseline thyroid function tests were within...
