Abstract

Anaphylactic reaction rarely occurs after the 1st injection of

penicillin-streptomycin in cattle. Immediately following

 intramuscular injection of a Holstein-Friesian cow with

 penicillin-streptomycin, the cow showed abnormal

clinical signs that included respiratory distress, urticaria

, and lacrimation. Recovery took approximately 2 h after

 intramuscular injection of dexamethasone.

 This report presents clinical findings

 recorded 20 and 40 h later.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2696705/

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2696705/pdf/cvj_07_741.pdf