title: Immobilization of polar bears with carfentanil.
mesh_terms: D000818:Animals; D001831:Body Temperature / Q000187:drug effects; D002335:Carnivora / Q000502:physiology; D002492:Central Nervous System Depressants / Q000008:administration & dosage* / Q000494:pharmacology; D005260:Female; D005283:Fentanyl / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000494:pharmacology; D006339:Heart Rate / Q000187:drug effects; D007103:Immobilization; D007273:Injections, Intramuscular / Q000662:veterinary; D008297:Male; D012007:Rectum; D012119:Respiration / Q000187:drug effects; D001503:Ursidae / Q000502:physiology
chemical_list: D002492:Central Nervous System Depressants; C017114:carfentanil; D005283:Fentanyl