Definition

1. Adjective:
   • Designed to release an active substance gradually: Relating to a preparation, especially a medication, that is engineered to dispense its active ingredient slowly and continuously over an extended period after administration.

Usage

• The term time-release is used almost exclusively as an adjective to describe pharmaceuticals, nutrients, or chemicals formulated for controlled, prolonged release. It typically precedes a noun (e.g., , ).
• It describes the property of the preparation itself, not the action of taking it.

Examples

• Adjective:
  • The doctor prescribed a time-release painkiller to provide all-day relief.
  • These are time-release vitamins that dissolve slowly in your system.
  • The technology behind the time-release fertilizer ensures nutrients feed the plants for months.

Advanced Usage

• As a compound modifier: Often hyphenated when used before a noun ("time-release formulation"). It may be written without a hyphen in more technical contexts or after a noun (e.g., "The capsule is time release"), though the hyphenated form is standard.
• Conceptual extension: While primarily technical, the concept can be applied metaphorically to describe non-physical things intended for gradual dissemination (e.g., ).

Variants and Related Words

• Sustained-release (adj): A synonym often used interchangeably in pharmacology.
• Extended-release (adj): Another common synonym, abbreviated as ER or XR on medication labels.
• Controlled-release (adj): A broader term encompassing various release mechanisms, including time-release.
• Delayed-release (adj): Specifically designed to release after a time delay or in a specific part of the digestive system, not necessarily gradually.

Synonyms

• Sustained-release
• Extended-release
• Prolonged-action
• Slow-release

Antonyms

• Immediate-release
• Rapid-release
• Fast-acting

Related Phrases

• Time-release mechanism: The specific component or chemical process that controls the gradual release.
• Time-release capsule/tablet: The common physical forms of such medication.

Adjective

1. of or relating to a preparation that gradually releases an active substance (especially a drug) over a period of time