Drug Information and Interactions

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• Effects of Common Drugs on PT/INR values - This handy pamphlet provides qualitative descriptions of the effect of commonly used pharmaceuticals on PT/INR values. It can help clinicians better understand possible underlying causes contributing to changes in these laboratory values. The pamphlet was originally produced by Medical Review of North Carolina, Inc. under a contract with the Centers for Medicare & Medicaid Services (CMS), formerly HCFA.