If any of the following serious side effects occur, stop giving Prednisolone and seek emergency veterinary medical attention: an allergic reaction (difficulty breathing; swelling of the lips, tongue or face; hives), increased blood pressure, or sudden weight gain. Other less serious side effects may occur. Continue giving Prednisolone and talk to your veterinarian if your pet experiences insomnia, nausea, vomiting or stomach upset, fatigue, muscle weakness or joint pain, problems with diabetes control, or increased hunger or thirst. Other side effects that occur rarely, usually with high doses of Prednisolone include thinning of the skin, cataracts, glaucoma, or behavior changes. Other side effects may also occur. Talk to your veterinarian about any side effect that seems unusual or bothersome to the animal.
The first isolation and structure identifications of prednisone and prednisolone were done in 1950 by Arthur Nobile .    The first commercially feasible synthesis of prednisone was carried out in 1955 in the laboratories of Schering Corporation, which later became Schering-Plough Corporation , by Arthur Nobile and coworkers.  They discovered that cortisone could be microbiologically oxidized to prednisone by the bacterium Corynebacterium simplex. The same process was used to prepare prednisolone from hydrocortisone . 
Corticosteroid myopathy presents as weakness and wasting of the proximal limb and girdle muscles and is generally reversible following cessation of therapy.
Corticosteroids inhibit intestinal calcium absorption and increase urinary calcium excretion leading to bone resorption and bone loss. Bone loss of 3% over one year has been demonstrated with prednisolone 10 mg per day. Postmenopausal females are particularly at risk for loss of bone density. Sixteen percent of elderly patients treated with corticosteroids for 5 years may experience vertebral compression fractures. One author reported measurable bone loss over two years in women on concomitant therapy with prednisolone mg per day and tamoxifen. [ Ref ]