For: Dogs This product is available in multiple strengths and sizes; please select the appropriate option for your pet as recommended by your veterinarian. For current availability, please refer to the product selection above.
Active ingredient(s) Prednisone
Common brand names Deltasone®
Drug class Glucocorticoid
Usage: Prednisone should be given orally as directed by your veterinarian. Do not discontinue this medication abruptly, especially if your pet has been taking it for two or more weeks. Please consult your veterinarian before making any changes or discontinuing the prescribed dosing schedule. This medication is given preferably with or after a meal. If your pet vomits or appears unwell after receiving a dose on an empty stomach, give future doses with food or a small treat. If vomiting continues, contact your veterinarian. Administer the dose as soon as possible. If it is almost time for the next dose, skip the missed dose and continue with the regular schedule. Do not give two doses at once.
Storage: Store in a cool, dry place at a controlled room temperature (68 to 77°F, excursions permitted between 59 and 86°F). Keep in a tight, light–resistant container and out of the reach of children and pets. Store away from heat and direct sunlight. Do not store this medication in the bathroom, near the kitchen sink, or in damp places. The medicine may break down if exposed to heat or moisture. Common side effects may include (but are not limited to): excessive thirst, urination, and appetite. Other reported side effects include dull⁄dry haircoat, weight gain, panting, GI effects (vomiting, diarrhea, GI ulceration), muscle wasting, and behavioral changes (e.g., depression, lethargy, aggression). Contact your veterinarian immediately if your pet stops eating, displays atypically low energy levels, experiences bloody vomiting, or has black, tarry stools. Many side effects are often linked to high doses or prolonged use but may still occur during short–term therapy. Your veterinarian may provide specific instructions to help avoid or lessen these effects. Notify your veterinarian if your pet experiences any of the effects described above, or if you notice any other side effects that are persistent or troublesome. If you notice anything unusual, please consult your veterinarian. If your pet is using this medication regularly, please consult your veterinarian before making any changes to the prescribed dosing schedule or discontinuing the medication abruptly. Do not use this medication if your pet has a current systemic fungal or viral infection, active tuberculosis, demodectic mange, hyperadrenocorticism, or active corneal⁄GI ulceration. Use with caution in animals with preexisting congestive heart failure, diabetes, hypertension, osteoporosis, bleeding or clotting disorders, liver failure, or kidney disease. Steroid medications can weaken your pet's immune system, making it easier for them to get an infection (or worsen an existing one). Vaccines should not typically be administered while on this medication. Notify your veterinarian if your pet is pregnant or nursing; they may adjust the dosage or monitor your pet more frequently while taking this medication. Do not administer to animals with a known history or suspected allergy⁄hypersensitivity to this medication or any of its ingredients. Allergic reactions to medications may occur. Be sure to inform Vetsource and your veterinarian if your pet has any known drug sensitivities or allergies. If your pet displays symptoms of an allergic reaction, discontinue therapy and call your veterinarian immediately or seek emergency veterinary attention. Symptoms may include (but are not limited to): swollen lips, tongue, face, or airways, difficulty breathing, agitation, profuse salivation, and widespread hives or itching. The following drugs* may have potential interactions with this medication: antidiabetic agents (including insulin), antihypertensives, azole antifungals, (concurrent) corticosteroids, cyclosporine, fluoroquinolone antibiotics, NSAIDs, and phenobarbital. *NOTE: this may not be a comprehensive list. Contact your veterinarian if your pet experiences any unusual reactions when different medications are given together. Please ensure your veterinarian is aware of all medications and supplements that your pet is currently receiving. Your veterinarian may prescribe multiple medications, even if a potential drug interaction may occur. In these instances, your veterinarian may adjust the dosages or monitor your pet more closely. If you are concerned that your pet has experienced an adverse reaction to this medication, please contact Vetsource Pet Owner Care at 877–738–4443. Last revised: 4⁄21⁄2025