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Empagliflozin Tablets
Empagliflozin is an oral antidiabetic medication classified as a sodium-glucose co-transporter 2 (SGLT2) inhibitor. It is widely used to manage type 2 diabetes mellitus (T2DM) and has additional benefits in cardiovascular and renal protection. This article outlines its pharmacology, clinical applications, and safety profile, referencing the British National Formulary (BNF), Lippincott Textbook of Pharmacology, and Lange Basic & Clinical Pharmacology.
Empagliflozin inhibits SGLT2, a protein in the proximal renal tubules responsible for reabsorbing ~90% of filtered glucose. By blocking SGLT2, empagliflozin promotes urinary glucose excretion, reducing blood glucose levels (Lippincott). This mechanism is insulin-independent, making it effective even in advanced diabetes. Additionally, it induces mild osmotic diuresis and modest weight loss.
Empagliflozin also demonstrates cardiovascular benefits, as shown in the EMPA-REG OUTCOME trial, reducing the risk of cardiovascular death in patients with T2DM and established cardiovascular disease (Lange).
- Type 2 Diabetes Mellitus: First-line or adjunctive therapy to improve glycemic control when diet/exercise and other medications (e.g., metformin) are insufficient (BNF).
- Heart Failure: Reduces hospitalization risk and mortality in patients with heart failure with reduced ejection fraction (HFrEF), regardless of diabetes status.
- Chronic Kidney Disease (CKD): Slows progression of CKD and reduces cardiovascular risk in patients with albuminuria (BNF).
- Standard Dose: 10 mg or 25 mg once daily, taken in the morning with or without food.
- Renal Impairment:
- Avoid if eGFR <20 mL/min/1.73m². Efficacy declines at eGFR <45 mL/min/1.73m².
- Not recommended for glycemic control in CKD stages 4–5 (BNF).
- Hepatic Impairment: No dose adjustment needed.
- Elderly: Monitor for volume depletion and hypotension.
- Genital mycotic infections (e.g., thrush).
- Urinary tract infections (UTIs), polyuria.
- Increased urination, thirst, and transient hypotension.
Serious:
- Euglycemic diabetic ketoacidosis (DKA) – may occur with normal or mildly elevated blood glucose.
- Fournier’s gangrene (rare but life-threatening necrotizing fasciitis).
- Acute kidney injury (risk with dehydration or concomitant NSAIDs).
- Bone fractures (long-term use) and slight LDL cholesterol elevation (Lippincott).
- Contraindications:
- Type 1 diabetes, diabetic ketoacidosis, severe renal impairment (eGFR <20).
- Hypersensitivity to SGLT2 inhibitors.
- Renal function, volume status, HbA1c, and ketones during acute illness or DKA symptoms (nausea, vomiting).
- Genital hygiene to prevent infections.
Avoid (Category C); not recommended during breastfeeding (BNF).
- Diuretics: Increased risk of dehydration and hypotension.
- Insulin/Sulfonylureas: Higher hypoglycemia risk; consider dose reduction.
- NSAIDs: May exacerbate renal impairment.
- ACE Inhibitors/ARBs: Monitor for hyperkalemia (Lange).
- Generic: Empagliflozin.
- Brand Name: Jardiance®.
