Strepvax II from Boehringer Ingelheim is an intramuscular bacterial extract horse vaccine formulated to help protect horses against Streptococcus equi (strangles). This prescription equine vaccine is provided as a suspension in 1 mL dose vials for precise administration. Ideal for barns and clinics seeking reliable livestock health products, the 10-vial pack supports convenient vaccination under veterinary supervision. Approved for horses only, Strepvax II aligns with professional equine care protocols. Use only as directed by your veterinarian.