Horita, A Naloxone and naltrexone block the gastrointestinal effects of TRH and MK-212. [electronic resource] - Proceedings of the Western Pharmacology Society 1984 - 385-6 p. digital Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. ISSN: 0083-8969 Subjects--Topical Terms: AnimalsDigestive System--drug effectsMaleNaloxone--analogs & derivativesNaltrexone--pharmacologyPyrazines--antagonists & inhibitorsRabbitsRatsRats, Inbred StrainsThyrotropin-Releasing Hormone--antagonists & inhibitors