What Is Cyclosporine, How Is It Related to Kidney Transplant and Does It Have Sideeffects? Introduction Cyclosporine is a prescription drug which comes in various forms, such as an oral capsule, an oral solution, eye drops and even in injectable form. According to a leading kidney specialist in Gurgaon, cyclosporine belongs to a class of drugs called immunosuppressants. A class of drugs is a group of medications that work in a similar way. These drugs are often used to treat similar conditions. Immunosuppressant drugs work by weakening a person’s immune system.