Immediate Release
IRĐịnh nghĩa
A drug formulation that releases the entire dose immediately upon administration, allowing rapid absorption and quick onset of action. IR formulations typically require more frequent dosing throughout the day compared to extended-release versions.
Ví dụ
Oxycodone IR begins working within 15-30 minutes and is used for breakthrough pain, while oxycodone ER provides sustained relief over 12 hours.
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