PhenoxyBENZAMINE HCL Oral Suspension (Anhydrous)
PhenoxyBENZAMINE HCL is a compounded formulation containing PhenoxyBENZAMINE 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.
Phenoxybenzamine hydrochloride is an alpha-adrenergic antagonist utilized in veterinary medicine for the management of smooth muscle tone. It is a prescription medication available for use in dogs and cats, frequently considered by veterinarians for patients presented with urinary retention associated with urethral sphincter hypertonicity. Your veterinarian will determine appropriateness based on a physical examination and diagnostic findings.
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.
At a pharmacological level, it is considered to influence smooth muscle contraction by noncompetitively blocking alpha-1 receptors. Commonly observed effects include behavioral shifts such as temporary lethargy or cardiovascular changes like low blood pressure (hypotension). Because it influences vascular tone, your veterinarian will monitor for observational signs of weakness or increased heart rate. Owners should monitor for significant changes in activity or fainting episodes and contact their veterinarian promptly with any concerns.
Yes. Phenoxybenzamine is a prescription medication and requires a valid authorization from a licensed veterinarian. Mixlab ensures all legal and professional standards are met before dispensing.
Yes. Mixlab specializes in compounding phenoxybenzamine into customized strengths and flavored oral formats, such as flavored oral liquids or capsules, to suit the specific needs of your pet.
Veterinarians discuss phenoxybenzamine because it is considered to influence the muscles in the urethra. This provides a method for addressing the ability to urinate in pets presented with certain types of urinary obstructions or muscle spasms.
Low blood pressure is a commonly observed effect, which may manifest as weakness. Your veterinarian will provide guidance on what level of lethargy is expected and how to monitor your pet's energy during the course of management.
Because this medication influences vascular tone, your veterinarian may recommend wearing gloves when handling the medication to prevent accidental absorption. Always follow the professional guidance provided.
