Unverified70% confidenceTradeoffTime unknown
缓释（time-release）剂型能减少水溶性B族快速经尿排出的浪费、维持血药浓度平稳，但生物利用度峰值低于速释型，追求快速缓解疲劳可选速释，追求平稳补充选缓释
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70%
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Unverified缓释型(time-release/sustained-release)可减少B族快速代谢造成的尿液发黄和一次性峰值，但溶出慢、部分人吸收率下降，肠胃敏感者更适合缓释、追求即时补充选普通片90% similarUnverified缓释型(time-release/sustained-release)B族更适合日常保健,B族为水溶性维生素,普通剂型易在数小时内快速排出,缓释技术可维持血药浓度更平稳,减少尿排损失87% similarUnverified缓释型（time-release/sustained-release）维生素C分数小时缓慢释放，血药浓度更平稳、生物利用率利用更充分；普通片剂大剂量摄入时约有一半随尿排出，缓释型更适合需要长时间维持血药浓度的人群82% similarUnverified缓释剂型（time-release）在数小时内持续释放，可维持血药浓度稳定、减少大剂量对胃的刺激，适合1000mg高剂量长期服用者；普通剂型吸收快但峰值后快速排出，适合低剂量日常补充82% similarUnverifiedB族为水溶性维生素，普通剂型服用后1-2小时血药浓度骤升随尿排出(尿液变亮黄属正常)，选缓释技术(sustained release)可维持6-8小时稳定释放，减少浪费81% similar
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