Diclofenac Sodium vs Potassium: Choosing the Right Form for the Job

Today, during hospital duty, I encountered a question that made me pause and think deeply: Why do we have both diclofenac sodium and diclofenac potassium, and when do we choose one over the other? Though both are NSAIDs with similar mechanism of action (COX inhibition leading to reduced inflammation and pain), subtle differences in pharmacokinetics define their clinical use: 🔹 Diclofenac Sodium – slower absorption, longer duration; often preferred for chronic inflammatory conditions like osteoarthritis, where sustained relief is needed. 🔹 Diclofenac Potassium – faster absorption, quicker onset; ideal for acute pain such as post-operative pain or migraine attacks, where rapid symptom control is crucial. This distinction is more than just chemical—it directly impacts patient outcomes, comfort, and adherence. It reminded me how every choice in therapy must be evidence-based, considering not just the drug, but the timing, formulation, and patient scenario. Being on the hospital floor continuously reinforces that pharmacy is not just about dispensing medications—it’s about understanding their life in the body and their impact on people. #ClinicalPharmacy #Pharmacology #PatientCare #HospitalLearning #DrugFormulations #PharmacyInsight

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