Simvastatin
Dosing in kidney impairment
Recommended Dosage in Patients with Renal Impairment For patients with severe renal impairment [creatinine clearance (CLcr) 15 – 29 mL/min], the recommended starting dosage of simvastatin is 5 mg once daily [see WARNINGS AND PRECAUTIONS AND USE IN SPECIFIC POPULATIONS]. Use another simvastatin product to initiate dosing in such patients [see DOSAGE AND ADMINISTRATION].
There are no dosage adjustment recommendations for patients with mild or moderate renal impairment.
Dosing in liver impairment
Hepatic Impairment Simvastatin is contraindicated in patients with acute liver failure or decompensated cirrhosis [see CONTRAINDICATIONS, WARNINGS AND PRECAUTIONS] .
Preparation and administration
Important Dosage and Administration Information Take simvastatin tablets USP orally once daily in the evening. The maximum recommended dosage is simvastatin tablets USP 40 mg once daily [see DOSAGE AND ADMINISTRATION ( 2.2 , 2.3 )]. An 80 mg daily dosage of simvastatin tablets USP is restricted to patients who have been taking simvastatin tablets USP 80 mg daily chronically (e.g., for 12 months or more) without evidence of muscle toxicity [see WARNINGS AND PRECAUTIONS].
If as dose is missed, take the missed dose as soon as possible. Do not double the next dose. For patients that require a high-intensity statin or are unable to achieve their LDL-C goal receiving simvastatin tablets USP 40 mg daily, prescribe alternative LDL-C-lowering treatment. Assess LDL-C when clinically appropriate, as early as 4 weeks after initiating simvastatin tablets USP, and adjust the dosage if necessary.