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DIAZEpam Oral Suspension (Anhydrous)

DIAZEpam Oral Suspension (Anhydrous)

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Select Strength: 2mg/mL
Select size: 12 mL
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Also available as a SuppositoryTablet

DIAZEpam is a compounded formulation containing DIAZEpam, 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:

  1. Shake well each time to mix the medication (5-10 seconds).
  2. 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
  3. Hold your pet steady: a towel or helper can assist with squirmy pets.
  4. Administer the dose slowly into the side of the mouth. Allow small pauses if needed for swallowing.
  5. Raise the head slightly to help the medication go down and clean any spills with a little water or tissue.
  6. Praise your pet and offer a treat or water (unless advised against feeding right after).
  7. Clean the syringe with water immediately after use. Store the bottle as directed, out of sunlight.
  8. 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 most commonly consider diazepam for the management of acute seizure activity or as a component of behavioral management protocols for situational anxiety. It is frequently discussed in the context of emergency care for status epilepticus or for managing short-term stress triggers such as transport or noise aversion events. Beyond its neurological and behavioral applications, diazepam is also considered for providing skeletal muscle relaxation and, in feline patients specifically, has been evaluated as a short-term appetite stimulant.

At a pharmacological level, diazepam acts by enhancing the activity of gamma-aminobutyric acid (GABA), which is the primary inhibitory neurotransmitter within the central nervous system. It binds to specific benzodiazepine receptors on the GABA-A receptor complex, increasing the frequency of chloride channel opening. This mechanism hyperpolarizes the postsynaptic neuron, making it less susceptible to excitatory signaling. By managing this inhibitory pathway, the medication provides a method for reducing neuronal excitability and modulating the body's response to stress or electrical imbalances. Your veterinarian will determine the clinical appropriateness of diazepam based on your pet’s diagnostic findings, weight, species and overall health profile.

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 following the administration of diazepam include sedation, temporary coordination changes (ataxia) and a noticeable increase in appetite. In some patients, a "paradoxical excitement" may occur where the animal appears more agitated rather than relaxed; your veterinarian will weigh this possibility when evaluating the management approach. Because diazepam is metabolized by the liver, feline patients receiving oral formulations require close monitoring of hepatic values, as localized liver challenges have been associated with this route in cats. Owners should monitor their pet for any unusual behavioral shifts, significant lethargy or yellowing of the skin and eyes (jaundice) and contact their veterinarian promptly with any concerns.

This medication is typically used with extra caution or avoided in patients with known severe hepatic or renal impairment, respiratory compromise or muscle weakness disorders. It is also carefully evaluated in pregnant or nursing animals. Significant interactions can occur if diazepam is administered concurrently with other central nervous system depressants, certain antifungal medications or specific liver enzyme inhibitors. Sudden discontinuation after long-term use is typically avoided to manage the risk of withdrawal signs; your veterinarian is the right person to provide guidance on any necessary tapering schedule.

Do I need a prescription to get diazepam for my pet?

Yes. Diazepam is a prescription medication and a controlled substance that can only be dispensed by a licensed pharmacy upon receipt of a valid authorization from a licensed veterinarian. Mixlab ensures all legal and regulatory requirements are met before dispensing any medication.

Can diazepam be compounded for my pet?

Yes. While diazepam is available in commercial tablet and injectable formats, Mixlab specializes in compounding the active ingredient into customized strengths and flavored dosage forms—such as flavored oral liquids or rectal gels—to suit the specific needs of your pet. The decision to utilize a compounded formulation rests with the prescribing veterinarian.

What is diazepam used for in dogs and cats?

Veterinarians most commonly discuss diazepam for managing acute seizure activity and severe situational stress. Its mechanism acts to manage the excitability of neurons in the brain, providing a method for addressing excessive electrical signaling or reactive behaviors.

Will diazepam make my cat eat more?

An increase in appetite is a commonly observed effect of diazepam in cats. Veterinarians sometimes select this medication specifically for its role as an appetite stimulant in feline patients, though they will monitor your cat closely to ensure the physiological response is appropriate.

How quickly does diazepam start working?

The onset of observational signs depends on the route of administration and the individual pet's metabolism. Your veterinarian will provide guidance on the expected timeline and what progress indicators to monitor during the management course.

Mixlab is a licensed veterinary pharmacy dispensing both compounded and commercial medications, operating under the oversight of licensed pharmacists and in compliance with applicable state and federal pharmacy regulations. Compounded medications are prepared in compliance with USP standards and under PCAB-accredited practices. All medications dispensed by Mixlab require a valid prescription from a licensed veterinarian.
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