BA是Bioavailability的縮寫，表示臨牀試驗中的生物利用度。
雙語例句
1、It has superior bioavailability and transports well across the blood brain barrier and into cells.
它具有優越的生物利用度和運輸跨越血腦屏障進入細胞。
2、The results showed that the relative bioavailability in the pellet group was 172% in comparison with that in the conventional tablet group.
結果表明與常規片劑相比．硝苯地平微丸膠囊的相對生物利用度爲172％。
