520.1921—Prochlorperazine, isopropamide, with neomycin sustained-release capsules.
        
        (1) 
         Capsule No. 1: 3.33 milligrams of prochlorperazine (as the dimaleate), 1.67 milligrams of isopropamide (as the iodide), and 25 milligrams of neomycin base (as the sulfate); or
    
    
        
        (2) 
         Capsule No. 3: 10 milligrams of prochlorperazine (as the dimaleate), 5 milligrams of isopropamide (as the iodide), and 75 milligrams of neomycin base (as the sulfate).
    
    
    
    | Animal weight (pounds) | Number of capsules per dose | |
|---|---|---|
| Capsule No. 1 | Capsule No. 3 | |
| 10 to 20 | 1 | |
| 20 to 30 | 2 | |
| Over 30 | 3 | 1 | 
| Over 60 | 2 | |
        
        (2) Indications for use.
         For treatment of dogs in which infectious bacterial  gastroenteritis is associated with emotional stress.
    
    
        
        (3) Limitations.
         Do not continue medication longer than 5 days. Overdosage or prolonged administration may produce nephrotoxicity as manifested by albuminuria, presence of granular casts and depressed urinary output. If it is desirable to administer a vasoconstrictor, norepinephrine is the drug of choice. Federal law restricts this drug to use by or on the order of a licensed veterinarian.