Prazosin HCL Transdermal Pen (1.5mL)
Prazosin HCL is a compounded formulation containing Prazosin HCL, prepared by Mixlab for veterinary use. Available by prescription.
A transdermal pen is a simple way to give your pet medicine through their skin—usually used for cats by applying gel to the inside of their ear.
Step-by-Step:
- Get the pen ready – Twist the pen to dispense a small amount of gel. If it’s your first time, you will need to “prime” it first (the gel should be flush with the edge of the tip)
- Wear gloves – Always use a disposable glove or finger cot so the medication doesn’t absorb into your skin.
- Twist to dose – Follow the pen’s directions (like two full twists) to get the right amount of gel out. Always click in a clockwise direction, clicking counter-clockwise will stop you
- Pick the spot – Apply to a hairless area, usually the inside of your cat’s ear. Make sure the area is clean and dry.
- Apply the gel – Dab the gel directly with the pen or use your gloved finger to rub it in gently. Avoid the ear canal.
- Let it dry – It usually dries in a minute or two. Try to keep your pet from rubbing it off.
- Recap the pen – This keeps the medication fresh.
- Wash your hands – Even if you wore gloves, wash thoroughly after.
- Reward your pet – A treat helps make it a stress-free routine!
- Store properly – Keep at room temp, away from sunlight. Track doses so you know when it’s time to refill.
Important: Only apply where your vet has directed—usually hairless areas. Never apply over fur or broken skin. Keep other pets from licking the area until it’s dry.
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.
Prazosin hydrochloride is a selective alpha-1 adrenergic antagonist utilized in veterinary medicine for cardiovascular and urinary management. It is a prescription medication available for use in dogs and cats, frequently considered by veterinarians for patients presented with urinary challenges or localized vascular resistance. Your veterinarian will determine appropriateness based on a physical examination and clinical status.
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 used in the context of managing smooth muscle tone in the bladder neck and urethra, providing an approach for managing the ability to urinate. Commonly observed effects include behavioral shifts such as temporary lethargy or coordination changes and cardiovascular changes like low blood pressure (hypotension). Because it influences vascular dynamics, your veterinarian will monitor for observational signs of weakness or fainting. Owners should monitor for significant changes in activity or appetite and contact their veterinarian promptly with any concerns.
Yes. Prazosin 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 prazosin into customized strengths and flavored oral formats, such as flavored oral liquids or capsules, to suit the specific needs of your pet.
Veterinarians discuss prazosin for stress-related urinary challenges or after a blockage because it may relax the muscles in the urethra. This offers an approach to managing the passage of urine.
Lethargy and weakness are commonly observed effects, especially when first starting the medication. Your veterinarian will provide guidance on what level of drowsiness is expected during the course of management.
Weakness can be an observational sign of low blood pressure associated with prazosin. If you notice your pet appearing unusually unsteady or fainting, contact your veterinarian immediately for a clinical review.
