StacksVerified U.S. regulatory reference

21 CFR §524.1484f

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
  1. (a)Specifications. The product contains 5 milligrams of neomycin sulfate equivalent to 3.5 milligrams of neomycin base, 2.5 milligrams of prednisolone acetate, and 5 milligrams of tetracaine hydrochloride in each milliliter of sterile suspension.
  2. (b)Sponsor. See No. 054771 in § 510.600(c) of this chapter.
  3. (c)Conditions of use in dogs and cats—(1) Amount. Instill 2 to 6 drops in the external ear canal 2 or 3 times daily.
    1. (2)Indications for use. For the treatment of acute otitis externa and, to a lesser degree, chronic otitis externa; as treatment or adjunctive therapy of certain ear conditions caused by or associated with neomycin-susceptible organisms and/or allergy.
    2. (3)Limitations. Federal law restricts this drug to use by or on the order of a licensed veterinarian.