What Does SR Mean for a Doctor?: Sustained-Release Medications Explained
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4 min read
According to the National Institutes of Health, modified-release drugs, including sustained-release (SR) formulations, are increasingly used in modern medicine, making understanding these abbreviations critical for both clinicians and patients. When a doctor or pharmacist refers to a medication as SR, they are designating a specific drug delivery system designed to release its active ingredient gradually over an extended period.
