Drug Interactions with Sacubitril/Valsartan
Introduction to Sacubitril/Valsartan Interactions
- The American College of Cardiology recommends that sacubitril/valsartan has clinically significant interactions primarily with ACE inhibitors, aliskiren, and statins, while also requiring careful monitoring when combined with potassium-sparing agents, NSAIDs, and lithium 1, 2
Absolute Contraindications
- The American College of Cardiology states that ACE inhibitors are absolutely contraindicated with sacubitril/valsartan, requiring a mandatory 36-hour washout period before initiating sacubitril/valsartan to prevent life-threatening angioedema 1, 2
- Aliskiren is contraindicated in patients with diabetes, and should be avoided in patients with eGFR <60 mL/min/1.73 m² 1
Statin Interactions Requiring Dose Adjustment
- The American Heart Association notes that coadministration of sacubitril/valsartan with atorvastatin increased atorvastatin Cmax up to 2-fold and AUC by up to 1.3-fold, though no significant adverse events were reported 3, 4
- Lower doses of atorvastatin, fluvastatin, pitavastatin, pravastatin, rosuvastatin, or simvastatin may be considered when used in combination with sacubitril/valsartan 3, 4
Monitoring Strategy for Drug Interactions
- The American College of Cardiology recommends blood pressure monitoring, as sacubitril/valsartan may exert more pronounced BP effects than ACE inhibitors/ARBs alone 2
- Renal function (serum creatinine, eGFR) should be monitored routinely, especially with aldosterone antagonists or NSAIDs 5
- Serum potassium requires serial measurement, particularly with MRAs or potassium-sparing diuretics 5
Special Populations and Interaction Considerations
- The American College of Cardiology states that severe renal impairment (eGFR <30 mL/min/1.73 m²) requires reduced starting dose of 24/26 mg twice daily 1, 2