Careprost is a prescription medicine used to lower the intraocular pressure (IOP) in people with glaucoma. This is a condition where fluid builds up in the eyes and puts pressure on the optic nerve, which can lead to vision loss or even blindness. This medication is available in many different forms, including eye drops and creams. It can be purchased online or at a local drugstore. The eye drop is usually a white to off-white liquid and contains bimatoprost, a synthetic form of Prost amide.