Chlorpromazine is mainly prescribed by vets to prevent vomiting. However, your vet may also prescribe chlorpromazine to treat other conditions such as anxiety.


If you miss a dose ensure it is given as soon as possible, however, if it is almost time for the next dose then skip the missed dose and continue as normal. Ensure two doses are not administered together.

I have heard that this drug can have side effects, how will this affect my pet?

All medicines have potential side effects but this does not mean your pet has a high risk of experiencing them. The most common side effects are drowsiness and low blood pressure. Other side effects may include tremors, shivering, rigidity, loss of righting reflexes, lethargy and diarrhea.

Possible drug interactions

Ensure your vet is aware of any other medication you are giving your pet. Drug interaction is not uncommon when two differing medications are prescribed. Medications that may interact with chlorpromazine include organophosphates, physostigmine, other CNS depressant agents, quinidine, antidiarrheal mixtures, antacids, propranolol, epinephrine, metoclopramide, phenytoin, procaine and dipyrone.