An aqueous emulsion for use in veterinary medicine which contains beta carotene and can be administered parenterally from a sterile multi-dose container contains acetylcysteine in an amount of between 1 and 8 wt.-% as a substance which stabilizes the emulsion and protects preservatives and beta carotene from being decomposed. The beta carotene-containing emulsion can additionally contain at least one antioxidant and at least one preservative. As the antioxidant, ascorbyl palmitate or alpha-tocopherol can be added. The emulsion can further contain a solubilizer, for example isopropyl myristate or Solutol® HS 15.
