Chlorpromazine HCl Oral Suspension (Anhydrous)
Chlorpromazine HCl is a compounded formulation containing Chlorpromazine HCl, prepared by Mixlab for veterinary use. Available by prescription.
How to Give Anhydrous Oral Suspension
Oral Suspension (Anhydrous) is a liquid medication that does not contain water in its base. This might be an oil-based or other special base to help stabilize the medicine. It will look like a regular liquid medication, but often needs a good shake because the drug can settle. Here's how to give it:
- Shake well each time to mix the medication (5-10 seconds).
- Measure the dose using the syringe/dropper provided or one recommended by your vet. Insert the top of the oral syringe into the bottle adapter. Turn the bottle upside down and pull the plunger until the medicine reaches the volume required
- Hold your pet steady: a towel or helper can assist with squirmy pets.
- Administer the dose slowly into the side of the mouth. Allow small pauses if needed for swallowing.
- Raise the head slightly to help the medication go down and clean any spills with a little water or tissue.
- Praise your pet and offer a treat or water (unless advised against feeding right after).
- Clean the syringe with water immediately after use. Store the bottle as directed, out of sunlight.
- Consistency is key: Shake each time, measure accurately, and contact your vet if any issues arise.
The uses and pharmacology described below reflect the FDA-approved labeling for this active ingredient; your veterinarian determines whether and how they apply to your animal's treatment plan.
Veterinarians commonly consider chlorpromazine HCl when a patient requires the management of persistent nausea or vomiting, particularly when other first-line therapies are insufficient. It is also a frequent point of discussion in clinical settings where mild sedation or behavioral modulation is needed for patient handling or to address acute stress-related behaviors. Due to its broad pharmacological profile, your veterinarian may select this medication for patients experiencing gastrointestinal distress or those requiring a transition away from a highly agitated state.
At a pharmacological level, chlorpromazine acts primarily as an antagonist at dopamine (D2) receptors within the brain, particularly in the chemoreceptor trigger zone (CRTZ). By blocking these receptors, it addresses the physiological triggers that lead to the vomiting reflex. Additionally, it possesses alpha-adrenergic blocking activity and acts on histamine, muscarinic and serotonin receptors, which shapes its sedative and tranquilizing effects. Your veterinarian will determine if chlorpromazine is appropriate for your pet based on their species, weight, health status and the specific clinical context.
Prescription only. Use only under the direction of a licensed veterinarian. This information is not a substitute for veterinary diagnosis, prescribing or monitoring. Compounded drugs are not approved by the FDA for safety or effectiveness.
Commonly observed effects of chlorpromazine hydrochloride include sedation, lethargy and a temporary drop in blood pressure (hypotension). In some patients, owners may observe a drop in body temperature or a protrusion of the third eyelid, which are characteristic physiological responses to phenothiazine medications. Because chlorpromazine can influence coordination, your pet should be monitored closely in a safe environment following administration. If you observe significant tremors, persistent weakness or signs of an allergic reaction, contact your veterinarian promptly.
This medication is typically used with extra caution or avoided in patients with known cardiovascular disease, liver impairment or a history of seizures. It is also carefully evaluated in patients experiencing shock or severe dehydration, as its alpha-blocking effects can influence vascular stability. Chlorpromazine can interact with various other prescriptions, including certain anesthetics and blood pressure medications, so providing your veterinarian with a complete medication history is essential. Your veterinarian will monitor your pet's response to ensures the protocol remains appropriate for their individual health status and will provide guidance on patient monitoring during the recovery period.
Yes. Chlorpromazine hydrochloride is a prescription medication and can only be dispensed by a licensed pharmacy upon receipt of a valid authorization from a licensed veterinarian. Mixlab verifies all prescriptions before any medication is prepared or sent to your home.
Yes. While chlorpromazine is available in commercial injectable and tablet formats, Mixlab can compound this medication into specialized strengths or flavored oral liquids to facilitate easier administration for your pet. Your veterinarian will determine if a compounded preparation is an appropriate option for your animal's individual needs.
Veterinarians most frequently consider chlorpromazine for its anti-nausea effects and as a sedative to help manage anxiety or facilitate handling. It is often discussed as part of a management approach for pets experiencing motion sickness or persistent gastrointestinal upset.
Sedation is a commonly observed effect of chlorpromazine because it acts on various receptor systems in the central nervous system. The depth of sedation can vary based on the dose administered and your pet's individual sensitivity, which your veterinarian will weigh when designing the protocol.
