Rectal administration provides rapid absorption of many drugs and may be an easy alternative way to the intravenous route, having the advantage of being relatively painless.
直肠给药制剂具有快速吸收，无痛等优点，有时可作为静脉给药的替代和补充。
2
Evidence for antidiuretic control of rectal water absorption in the cockroach Periplaneta Americana l.