[Code of Federal Regulations]
[Title 21, Volume 6]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR558.115]

[Page 390-391]
 
                        TITLE 21--FOOD AND DRUGS
 
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN 
                          SERVICES (CONTINUED)
 
PART 558--NEW ANIMAL DRUGS FOR USE IN ANIMAL FEEDS--Table of Contents
 
      Subpart B--Specific New Animal Drugs for Use in Animal Feeds
 
Sec.  558.115  Carbadox.

    (a) Approvals. Type A medicated articles: 2.2. percent (10 grams per 
pound) to 066104 in Sec.  510.600(c) of this chapter.
    (b) Related tolerances. See Sec.  556.100 of this chapter.
    (c) Special considerations. Do not use in Type B or Type C medicated 
feeds containing bentonite.
    (d) Conditions of use. It is used for swine as follows:
    (1) Amount per ton. 10-25 grams (0.0011-0.00275 percent).
    (i) Indications for use. For increase in rate of weight gain and 
improvement of feed efficiency.
    (ii) Limitations. Not for use in pregnant swine or swine intended 
for breeding purposes. Do not feed to swine within 42 days of slaughter.
    (2) Amount per ton. 50 grams (0.0055 percent).
    (i) Indications for use. For control of swine dysentery (vibrionic 
dysentery, bloody scours, or hemorrhagic dysentery); control of 
bacterial swine enteritis (salmonellosis or necrotic enteritis caused by 
Salmonella choleraesuis); increased rate of weight gain and improved 
feed efficiency.
    (ii) Limitations. Not for use in pregnant swine or swine intended 
for breeding purposes. Do not feed to swine within 42 days of slaughter.
    (3) Amount per ton. Carbadox 50 grams (0.0055 percent) plus pyrantel 
tartrate, 96 grams (0.0106 percent).
    (i) Indications for use. For control of swine dysentery (vibrionic 
dysentery, bloody scours, or hemorrhagic dysentery); control of 
bacterial swine enteritis (salmonellosis or necrotic enteritis caused by 
Salmonella choleraesuis); aid in the prevention of migration and 
establishment of large roundworm (Ascaris suum) infections; aid in the 
prevention of establishment of nodular worm (Oesophagostomum) 
infections.
    (ii) Limitations. Do not feed to swine over 75 pounds; do not feed 
within 10 weeks of slaughter; consult a veterinarian before feeding to 
severely debilitated animals; feed continuously as sole ration. Do not 
use in complete

[[Page 391]]

feeds containing less than 15 percent crude protein.

[40 FR 13959, Mar. 27, 1975, as amended at 40 FR 45164, Oct. 1, 1975; 40 
FR 57798, Dec. 12, 1975; 42 FR 761, Jan. 4, 1977; 51 FR 7396, Mar. 3, 
1986; 63 FR 59216, Nov. 3, 1998; 66 FR 47963, Sept. 17, 2001]