There are several medications that are effective against coccidia, including sulfadimethoxine, trimethoprim-sulfadiazine, and ponazuril. The specific medication and duration of treatment will depend on the severity of the infection and the health of the cat. Coccidia oocysts (eggs) are very resistant to many disinfectants and can survive for long periods of time in the environment. However, there are some disinfectants that can be effective against coccidia, such as a 10% ammonia solution or a 3% hydrogen peroxide solution. It is important to thoroughly clean and disinfect litter boxes, surfaces, and other areas that may have been contaminated with feces to prevent reinfection and the spread of coccidia. In addition, incineration of feces or steam cleaning, immersion in boiling water, and other high-temperature methods can be effective in killing coccidia. These methods are more reliable in ensuring the elimination of coccidia oocysts than most disinfectants. It is important to note that prevention is key in controlling the spread of coccidia. Practicing good hygiene and sanitation measures, including regular cleaning and disinfection of litter boxes and living areas, as well as regular veterinary care and deworming, can help reduce the risk of coccidia infection in cats.