Do not give dexamethasone if your pet is also being given an NSAID such as aspirin or carprofen (Rimadyl), and others. Do not administer this medication in the presence of a systemic fungal infection. Do not administer "live" vaccine while using dexamethasone. The vaccine may not work as well during this time, and may not fully protect you from disease. Live vaccines include measles, mumps, rubella (MMR), oral polio, rotavirus, typhoid, varicella (chickenpox), H1N1 influenza, and nasal flu vaccine.
Before giving dexamethasone, tell your veterinarian if your pet is being given any other oral steroid medications such as prednisone, prednisOLOne, Methylprednisolone or others. Tell your veterinarian if the pet is being given furosemide, NSAIDs such as carprofen (Rimadyl), deracoxib (Deramaxx), or etodolac (EtoGesic), phenytoin (Dilantin), Phenobarbital, cyclosporine (Atopica), or mitotane (Lysodren). Drugs other than those listed may also interact with dexamethasone. Talk to your veterinarian or pharmacist before giving any prescription or over the counter medicines.