商品名：Progesterone*
Binds to specific cytoplasmic receptors, which then enter the nucleus and alter the transcription of DNA leading to alterations in cellular metabolism.
Threatened or habitual abortion, induction of parturition and postponement of oestrus. Doses of 2 mg/kg i.m. q48h will maintain plasma progesterone values >2 ng/ml, the level required to maintain pregnancy. Parturition can be expected 72 hours after the last injection. Parturition should be planned for day 57 after the onset of cytological dioestrus in the bitch or 64 days after mating in the queen. Other medications are authorized for the postponement of oestrus.
劑量數字暫停提供：VetPro 的劑量改依 DRUGAPI 藥物資料庫對外的內容，DRUGAPI 目前不提供可直接計算的劑量。下方列出 DRUGAPI 的審查結論與劑量審查引用的來源；計算機可手動輸入劑量換算。
必須先確認 exact product、濃度／賦形劑、物種、途徑、用途、生殖階段、法域、連續監測與移除／停藥計畫；牛羊標籤與犬專科標示外情境不得攤平成通用劑量。
DRUGAPI 劑量審查引用的獸醫官方標示（各標示只適用於其產品、物種與法域，不可互換）
依出現頻率分組；嚴重副作用獨立列出，臨床上需立即辨識。