18/04/2026
🟥 40 Clinical Cases Where Medications Must Be Stopped
1.
💊 ACE inhibitors (e.g., Enalapril)
📌 Case: Patient develops angioedema with tongue swelling and airway compromise.
⛔ Must stop → risk of fatal airway obstruction.
2.
💊 Metformin
📌 Case: Patient develops acute kidney injury (AKI), eGFR 10x normal).
⛔ Must stop → prevent kidney failure.
5.
💊 Methotrexate
📌 Case: Patient develops severe pancytopenia or hepatotoxicity.
⛔ Must stop → fatal bone marrow suppression/liver failure risk.
6.
💊 Warfarin
📌 Case: Patient presents with major intracranial hemorrhage.
⛔ Must stop immediately + reverse with Vitamin K / PCC.
7.
💊 Lithium
📌 Case: Patient develops nephrogenic diabetes insipidus with worsening CKD.
⛔ Must stop → progressive renal damage.
8.
💊 NSAIDs (e.g., Ibuprofen, Diclofenac)
📌 Case: Patient with peptic ulcer bleed / upper GI hemorrhage.
⛔ Must stop → worsens bleeding.
9.
💊 Oral contraceptive pills (estrogen containing)
📌 Case: Woman develops deep vein thrombosis (DVT) / pulmonary embolism.
⛔ Must stop → thrombosis risk.
10.
💊 Clozapine
📌 Case: Patient develops agranulocytosis (ANC 5x normal or with jaundice).
⛔ Must stop → fulminant liver failure risk.
17.
💊 Bisphosphonates (e.g., Alendronate, Zoledronic acid)
📌 Case: Patient develops osteonecrosis of the jaw.
⛔ Must stop → irreversible damage risk.
18.
💊 Chemotherapy (Cisplatin, Doxorubicin)
📌 Case: Severe cardiotoxicity or nephrotoxicity develops.
⛔ Must stop → organ failure.
19.
💊 SSRIs (e.g., Fluoxetine, Sertraline)
📌 Case: Patient develops serotonin syndrome (fever, rigidity, autonomic instability).
⛔ Must stop → life-threatening.
20.
💊 Immune checkpoint inhibitors (e.g., Nivolumab, Pembrolizumab)
📌 Case: Patient develops severe immune-mediated colitis or myocarditis.
⛔ Must stop → high fatality risk.
ALGrawany
21.
💊 Heparin (UFH/LMWH)
📌 Case: Patient develops Heparin-Induced Thrombocytopenia (HIT).
⛔ Must stop → paradoxical clotting risk.
22.
💊 Sulfonylureas (e.g., Glibenclamide, Glipizide)
📌 Case: Patient has recurrent severe hypoglycemia despite dose adjustment.
⛔ Must stop → hypoglycemia-induced coma risk.
23.
💊 Thiazolidinediones (Pioglitazone, Rosiglitazone)
📌 Case: Patient develops congestive heart failure.
⛔ Must stop → fluid retention worsens HF.
24.
💊 Spironolactone / Eplerenone
📌 Case: Patient develops severe hyperkalemia (>6.5 mmol/L) with ECG changes.
⛔ Must stop → risk of fatal arrhythmia.
25.
💊 Phenytoin
📌 Case: Patient develops severe rash (SJS/TEN) or hepatotoxicity.
⛔ Must stop → systemic failure risk.
26.
💊 Chloramphenicol
📌 Case: Patient develops aplastic anemia or gray baby syndrome.
⛔ Must stop → fatal bone marrow failure.
27.
💊 Fluoroquinolones (e.g., Ciprofloxacin, Levofloxacin)
📌 Case: Patient develops tendon rupture or severe QT prolongation.
⛔ Must stop → sudden death or disability risk.
28.
💊 Beta-blockers (e.g., Metoprolol, Propranolol)
📌 Case: Patient develops severe bradycardia or cardiogenic shock.
⛔ Must stop (taper if possible).
29.
💊 Thyroxine (Levothyroxine)
📌 Case: Patient shows thyrotoxicosis from overtreatment (arrhythmia, weight loss, tremor).
⛔ Must stop or adjust → prevent thyroid storm.
30.
💊 Antiplatelets (Aspirin, Clopidogrel, Ticagrelor)
📌 Case: Patient with massive GI bleed or intracranial hemorrhage.
⛔ Must stop → prevent further fatal bleeding.
31.
💊 Linezolid
📌 Case: Patient develops serotonin syndrome (esp. with SSRIs) or severe bone marrow suppression.
⛔ Must stop → life-threatening.
32.
💊 Vancomycin
📌 Case: Patient develops ototoxicity or nephrotoxicity with worsening renal function.
⛔ Must stop or switch to alternative.
33.
💊 Amphotericin B
📌 Case: Patient develops severe nephrotoxicity with hypokalemia and acidosis.
⛔ Must stop → irreversible kidney injury.
34.
💊 Interferon-alpha (Hepatitis C therapy)
📌 Case: Patient develops severe depression or suicidal ideation.
⛔ Must stop → psychiatric safety.
35.
💊 Dapsone
📌 Case: Patient develops hemolysis in G6PD deficiency or methemoglobinemia.
⛔ Must stop → hypoxia risk.
36.
💊 Cyclophosphamide
📌 Case: Patient develops hemorrhagic cystitis or bone marrow suppression.
⛔ Must stop → bladder cancer & fatal infection risk.
37.
💊 Azathioprine
📌 Case: Patient with TPMT deficiency develops profound bone marrow failure.
⛔ Must stop → fatal pancytopenia.
38.
💊 Benzodiazepines (e.g., Diazepam, Lorazepam)
📌 Case: Elderly patient develops respiratory depression or delirium.
⛔ Must stop (taper → avoid withdrawal seizures).
39.
💊 Calcineurin inhibitors (Cyclosporine, Tacrolimus)
📌 Case: Patient develops progressive nephrotoxicity or hypertensive crisis.
⛔ Must stop → irreversible kidney injury.
40.
💊 Colchicine
📌 Case: Patient develops bone marrow suppression, rhabdomyolysis, or multi-organ toxicity (esp. with CYP3A4 inhibitors).
⛔ Must stop → fatal systemic toxicity.
