Aureomycin Soluble Oblets Contra-indications, warnings, etc Oral use in adult ruminants is not recommended. Aureomycin is of low toxicity and side effects are rarely encountered. If suspected adverse reactions do occur treatment should be discontinued. Wash hands thoroughly after use. Withdrawal Period Animals must not be slaughtered for human consumption during treatment. Animals may be slaughtered for human consumption only after 25 days from the end of treatment.