[Code of Federal Regulations]
[Title 21, Volume 6]
[Revised as of April 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR524.660a]

[Page 297-298]
 
                        TITLE 21--FOOD AND DRUGS
 
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN 
                          SERVICES (CONTINUED)
 
PART 524_OPHTHALMIC AND TOPICAL DOSAGE FORM NEW ANIMAL DRUGS--Table of Contents
 
Sec. 524.660a  Dimethyl sulfoxide solution.

    (a) Specifications. Dimethyl sulfoxide contains 90 percent of 
dimethyl sulfoxide and 10 percent of water.

[[Page 298]]

    (b) Sponsor. See No. 000856 in Sec. 510.600(c) of this chapter.
    (c) Conditions of use. (1) It is used or intended for use as a 
topical application to reduce acute swelling due to trauma:
    (i) In horses administered 2 or 3 times daily in an amount not to 
exceed 100 milliliters per day. Total duration of therapy should not 
exceed 30 days.
    (ii) In dogs administered 3 or 4 times daily in an amount not to 
exceed 20 milliliters per day. Total duration of therapy should not 
exceed 14 days.
    (2) Not for use in horses and dogs intended for breeding purposes 
nor in horses slaughtered for food. Other topical medications should 
only be used when the dimethyl sulfoxide treated area is thoroughly dry. 
Do not administer by any other route.
    (3) For use by or on the order of a licensed veterinarian.

[40 FR 13873, Mar. 27, 1975, as amended at 61 FR 5507, Feb. 13, 1996]