
07/02/2025
Mizzou Veterinary Insight: Antimicrobial Beads
At the University of Missouri Equine Hospital we utilize an advanced and multimodal approach to treat infection. One tool we have to use are antimicrobial beads. These beads are made at our clinic by combining a calcium sulfate base with an antibiotic. We can select the antibiotics to best meet the patient's needs. The calcium sulfate antimicrobial beads are then placed under the skin through stab incisions, in a surgery site, or in an open wound. The beads will absorb over time so there is no need to remove them. The beads release antibiotics over a two week period. They can be a useful way to fight infection at the source and can be used alone or with systemic (body wide) antibiotics. Here our Dr. Warren is placing antibiotic beads through small stab incisions. The other photos depict how the beads are made.