Giving medications to pregnant mares is never without risk and should always be discussed with your veterinarian.

Which drugs are safe for use in pregnant mares? 

My pregnant mare is colicking … can I give her Banamine? She needs a laceration sutured … is it safe for her to get a sedative? What about her fall vaccines?

Which common drugs and medications are safe for use in pregnant mares is a huge topic with more questions than answers, says Margo Macpherson, DVM, MS, Dipl. ACT, professor of large animal reproduction at the University of Florida’s College of Veterinary Medicine, in Gainesville. This is primarily because very few drugs have been thoroughly evaluated and validated for use in this population.

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