Veterinary Vertex
Veterinary Vertex
AVMA Journals
Blocked Again? How Lorazepam May Reduce Repeat Urethral Obstructions in Male Cats
24 minutes Posted May 13, 2026 at 5:00 am.
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Welcome And Study Setup
Why Urethral Obstruction Is Deadly
Why Lorazepam Might Work
Gold-Standard Trial Design Explained
Exclusions That Kept Data Clean
Discharge Plan Dosing And Cost
Zero Recurrences And What It Means
Lower Urinary Tract Signs Trend
Side Effects And Real-World Caveats
How This Could Change Practice
Which Cats To Avoid Lorazepam
One Takeaway And Closing Notes
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Show notes
Send us Fan Mail Zero re-obstructions sounds almost too good to be true, so we wanted to understand exactly how the data got there and what it means for everyday feline practice. We are joined by study author Dr. Kelly Tart to talk about a prospective, double-blinded, placebo-controlled trial evaluating lorazepam for recurrence prevention after feline urethral obstruction in male cats, one of the most common and life-threatening urinary emergencies we treat. We start with the “why”: feline u...