Adverb
intraperitoneally (not comparable)
Within or into the peritoneal cavity
The test substance was injected intraperitoneally.
LD50 values for mice are 1 mg/kg orally, 0.100 mg/kg intravenously, 0.270 mg/kg intraperitoneally and 0.270 mg/kg subcutaneously. Source: Internet
The lowest published lethal dose (LDLo) for mice is 1 mg/kg orally and 0.100 mg/kg intraperitoneally. Source: Internet