The invention belongs to the field of the medicines for animals and discloses a painless synergistic
amoxicillin powder injection for animals and a preparation method thereof. The
powder injection comprises the following components in parts by weight: 48-52 parts of
amoxicillin or
amoxicillin sodium (
active ingredient), 10-30 parts of a cosolvent, 1-3 parts of an analgetic, 5-8 parts of
probenecid sodium and 1-2 parts of an antifebrile anti-inflammatory
analgesic. The preparation method of the
powder injection comprises the following steps of: in parts by weight, evenly mixing 1-3 parts of analgetic, 5-8 parts of
probenecid sodium and 1-2 parts of antifebrile anti-inflammatory
analgesic together, and then evenly mixing the mixture with 48-52 parts of amoxicillin or
amoxicillin sodium (
active ingredient) and 10-30 parts of cosolvent, thereby obtaining the painless synergistic amoxicillin
powder injection. The amoxicillin
powder injection prepared by the preparation method provided by the invention solves the problems of strong injection pricking stress, poor effects of anti-
inflammation and analgesia, and heat
elimination and defervescence,
ingestion reduction after the administration of the
drug, and the like; and the product is highly required in clinical application, and is wide in market prospect and huge in social benefit.