Sig code: dosage form

SR medical abbreviation

SR means "sustained release".

Each meaning matched at least two public references (3 in all for SR), checked October 23, 2026. The table lists them.

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What SR means

MeaningLatin originWhere usedChecked against
sustained releaseNonePrescriptions, Medication labels

Example

Sample label text: "SR capsule."

A made-up line that shows the abbreviation in place. It is not about any patient and is not an instruction.

Related abbreviations

  • ERextended release; estrogen receptor
  • XRextended release
  • DRdelayed release
  • CRcreatinine
  • GTTdrop; glucose tolerance test; drops
  • CAPcapsule; community-acquired pneumonia

Elsewhere on Rivvi

Questions

What does SR mean in medical terms?

SR means "sustained release".

Where is SR used?

SR shows up in prescriptions and medication labels. Its category here is sig code: dosage form.

Is SR on the Joint Commission Do Not Use list?

No. SR is not on the Joint Commission Do Not Use list or the ISMP error-prone list as checked on October 23, 2026.

Source: NCI Thesaurus, including CDISC SDTM terminology (NCI EVS); NLM SPECIALIST Lexicon abbreviations file (LRABR); FDA Acronyms and Abbreviations. Data as of October 23, 2026. Last updated October 23, 2026. How we source data. Spotted an error? Send a correction.

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