The use of corticosteroids in a dog with myasthenia gravis

A diagnosis of myasthenia gravis was made in an approximately 3-year-old mongrel bitch based on physical, radiographic and electromyographic findings as well as on the response of the patient to an anticholinesterase drug. The patient responded favourably to parenteral treatment with an anticholinesterase drug but did not respond to oral administration of the drug. When the drug was given orally in combination with corticosteroids it had a long-lasting and favourable effect on the patient.