Duvaxyn™ R Presentation An inactivated adjuvanted liquid vaccine in single dose syringes for administration to pregnant mares. Each single vaccine dose contains 1ml of an inactivated oil adjuvanted vaccine of Equine Rotavirus H2 strain, RP ≥ 1.0* per 1ml dose. * Product is blended based on pre-inactivation titre but the blended and finished product must have a relative potency of at least 1.0.