controlled-release

controlled-release — 形容詞

1. used to describe a medicine or treatment that gives out its active ingredient gr

1.形容詞C1
釋義

緩釋

緩慢釋放藥效的劑型

used to describe a medicine or treatment that gives out its active ingredient gradually over a long period, instead of releasing it all at once

例句

The doctor prescribed a controlled-release painkiller for Soraya's chronic back condition.

醫生為 Soraya 開了緩釋型止痛藥來治療她的慢性背痛。

attributive use before noun naming drug type

Unlike standard tablets, this controlled-release patch delivers the medicine evenly across twenty-four hours.

與一般藥片不同，這款緩釋貼片能在二十四小時內穩定釋放藥物。

comparative structure contrasting with immediate-release forms

同義詞
  • extended-release

    Very similar; often abbreviated ER. Technically refers to formulations that release the drug over a longer period than standard versions, with slight regulatory differences from controlled-release.

  • sustained-release

    Often used interchangeably in everyday speech, but some medical guidelines distinguish sustained-release (steady slow release) from controlled-release (precise rate-controlled delivery).

  • time-release

    A more general, less technical term for the same concept. Common in consumer-facing product descriptions rather than clinical contexts.

反義詞
  • immediate-release

    Opposite concept — releases the full dose of drug all at once, with no delay or extended delivery mechanism.

文法句型

controlled-release + noun (tablet, capsule, patch, formula, medicine)

用法筆記

Typically placed before a noun naming the pharmaceutical form (tablet, capsule, patch, formula, injection). Often abbreviated as CR or ER (extended-release) on packaging labels. Do not confuse with sustained-release (SR), which is a related but distinct pharmaceutical standard.

常見錯誤

❌The medicine is controlled-release for six hours.
✅The medicine is a controlled-release formulation that works for six hours.
💡controlled-release is an adjective, not a verb; it must modify a noun.
❌I took a controlled-release of the drug.
✅I took a controlled-release version of the drug.
💡controlled-release describes a type of preparation, not the act of releasing.