Intraperitoneal injection

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Intraperitoneal injection
Other namesIP injection

Intraperitoneal injection or IP injection is the injection of a substance into the peritoneum (body cavity). It is more often applied to animals than to humans. In general, it is preferred when large amounts of blood replacement fluids are needed or when low blood pressure or other problems prevent the use of a suitable blood vessel for intravenous injection.[citation needed]

In humans, the method is widely used to administer chemotherapy drugs to treat some cancers, particularly ovarian cancer. Although controversial, intraperitoneal use in ovarian cancer has been recommended as a standard of care.[1] Fluids are injected intraperitoneally in infants, also used for peritoneal dialysis.


  1. ^ Swart AM, Burdett S, Ledermann J, Mook P, Parmar MK (April 2008). "Why i.p. therapy cannot yet be considered as a standard of care for the first-line treatment of ovarian cancer: a systematic review". Ann. Oncol. 19 (4): 688–95. doi:10.1093/annonc/mdm518. PMID 18006894.