Medrol Side Effects in Dogs

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Methyl prednisolone, marketed by under the brand name Medrol, can help dogs suffering from various disorders, but the drug has the potential for causing some serious side effects. Medrol suppresses inflammation and works throughout an animal's entire body, so side effects involve both physical and behavioral issues.

Methyl Prednisolone

A corticosteroid, methyl prednisolone is a stronger version of prednisolone, but its effects don't last as long. If giving your dog pills is essentially impossible, your vet might use the long-lasting injectable form of the drug, Depo-Medrol. How long your dog must receive Medrol depends on his diagnosis. Because the drug can mask infection, your vet will monitor your pet closely while the pooch is on the medication

Methyl Prednisolone Uses

Vets prescribe methyl prednisolone for relief of various inflammatory conditions as well as for relief from allergic reactions. Medrol commonly serves in treatment of dogs diagnosed with autoimmune diseases, dermatitis, asthma, certain eye conditions, rheumatoid arthritis and colitis. If your dog is hit by a car or experiences some other type of extreme trauma, he might receive Medrol for brain and spinal cord inflammation.

Side Effects

Dogs taking Medrol usually increase their water consumption and urinate more frequently. That's an expected side effect, but it's less of an issue with Medrol than with prednisolone. Other side effects include excessive panting, vomiting, diarrhea, weight gain and lethargy. Some dogs experience behavioral changes, including aggression. Given long-term, Medrol can cause Cushing's disease or hyperadrenocorticism. Symptoms of Cushing's disease include hair loss, thin skin and loss of muscle mass. Medrol can stunt growth in young canines. If your dog is scheduled for surgery or is battling a wound, Medrol can interfere with the healing process.

Precautions and Contraindications

Pregnant dogs should not receive Medrol, as administration during pregnancy could result in premature birth and puppy birth defects. Dogs with Cushing's disease should not receive Medrol. If your dog has been diagnosed with diabetes, glaucoma, congestive heart failure, high blood pressure, kidney or liver disease, your vet might choose another medication for treatment, or he may monitor your pet carefully. Dogs receiving any sort of nonsteroidal anti-inflammatory drugs should not take Medrol. Tell your vet about any medications or supplements you give your pet.

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Author

Jane Meggitt has been a writer for more than 20 years. In addition to reporting for a major newspaper chain, she has been published in "Horse News," "Suburban Classic," "Hoof Beats," "Equine Journal" and other publications. She has a Bachelor of Arts in English from New York University and an Associate of Arts from the American Academy of Dramatics Arts, New York City.