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. 2017 Oct 26;17(4):645–653. doi: 10.1007/s40268-017-0216-6
We performed pharmacokinetic/pharmacodynamic (PK/PD) simulations of the effects on serum low-density lipoprotein cholesterol (LDL-C) levels of various rates of adherence to simvastatin 20 mg and atorvastatin 5 mg.
The adherence rate threshold, above which serum levels of LDL-C were maintained in the target range, was > 0.8 for simvastatin and between 0.4 and 0.6 for atorvastatin.
We conclude that there is no unique adherence rate threshold, e.g., 0.8, that is universally applicable to all drugs.