Despite the significant benefits of today's drugs, they still have the potential to cause significant adverse effects. Here the authors briefly review urological disorders caused by drugs and adverse reactions caused by drugs used to treat urological disorders.

Summary Drugs used topically in the eye can cause systemic adverse effects that can range from mild to fatal. Ocular drugs can cause adverse effects by draining through the nasolacrimal duct and being absorbed into the blood stream, or by precipitating in the eye, or by causing an increase in intraocular pressure.