### [Alsina-Sanchis et al. Page 288][1] Intraperitoneal (i.p.) injection of experimental therapeutics is a common technique when assessing their bioactivity and efficacy in vivo . Many drugs are lipophilic and therefore require lipid carriers, such as mineral or vegetable oil, for delivery. It is

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### [Alsina-Sanchis等。Page 288] [1]腹腔内（ip）注射实验治疗剂是评估其体内生物活性和功效时的常用技术。许多药物具有亲脂性，因此需要脂质载体（例如矿物油或植物油）进行递送。它是