What are some side effects of prednisolone?

Lots: Prednisolone is a steroid used to shut down inflammation that causes asthma symptoms, trouble breathing, etc. Used infrequently in short bursts, it can cause mild behavioral changes, agitation, and hyperactivity. Over time, with repeated use, it can cause a decrease in growth, fat deposition, acne, and bone thinning.

Many: Prednisolone eye drops have a few short term side effects, like occasional irritation with use and increaed intraocular pressure. With long-term use, they can cause cataracts, glaucoma and increase your risk of infection.