Lecture 19 Flashcards
These receptors in the CRTZ induce vomiting
Dopamine
Emetics should not be used in animals that are…
Seizures/coma patients, patients with depressed pharyngeal reflexes, patients in shock and dyspnea, patients that ingested caustic substances, or animals that don’t normally vomit (horses and rabbits)
Centrally acting
Those acting on the CRTZ or emetic center
Locally acting
Those that act on peripheral receptors at the GI tract
Examples of centrally acting agents
Apomorphine and Xylazine (Alpha 2 agonist)
This is the emetic of choice in cats
Xylazine: alpha 2 agonist
This is the drug of choice to induce vomiting in dogs
Apomorphine
This drug comes as an injectable or tablet; the tablet can be dissolved in saline and put into the conjunctival sac and must be washed with sterile saline after vomiting
Apomorphine
The reversal agent for Xylazine
Yohimbine (Yobine®️) or Atiparmezole (Antisedan®️)
Antiemetics
Drugs that are used to prevent/control vomiting by blocking dopamine receptors, centrally in the CRTZ, emeti center, and peripherally
Examples of antiemetics
Phenothiazines and Maropitant (Cerenia®️)
Examples of Phenothizines
Chlorpromazine, Prochlorperazine
Trade name for Metoclopramide
Reglan®️
Metoclopramide is _____ acting and should not be used with __ _____
Centrally; GI blockage
Examples of anihistamines
Diphenhydramine (Benadryl®️) and Dramamine®️