522.1642—Oxymorphone hydrochloride injection.
        
        (a) Specifications.
         The drug contains 1 or 1.5 milligrams of oxymorphone hydrochloride per milliliter of aqueous solution containing 0.8 percent sodium chloride.
    
    
    
        
        (c) Conditions of use.
        
        (1) 
         The drug is a narcotic analgesic, preanesthetic, anesthetic, and substitute anesthetic adjuvant for intramuscular, subcutaneous or intravenous administration to cats and dogs as follows:
    
    | Animal | Body weight (pounds) | Dosage (milligram) | 
|---|---|---|
| Dogs | 2 to 5 | 0.75 | 
| 5 to 15 | 0.75-1.5 | |
| 15 to 30 | 1.5-2.5 | |
| 30 to 60 | 2.5-4.0 | |
| Over 60 | 4.0 | |
| Cats | Small | 0.4-0.75 | 
| Large | 0.75-1.5 | 
        
        (3) 
         It tends to depress respiration. Naloxone hydrochloride and other narcotic antagonists are used to counter over-dosing.