DIFICID is a medication used to treat Clostridium difficile-associated diarrhea (CDAD) in adults. It works by inhibiting the growth of the bacteria causing the infection. DIFICID is available in tablet form and is typically taken orally. It is prescribed by healthcare professionals and should be taken as directed for the recommended duration of treatment. Common side effects may include nausea, vomiting, and abdominal pain. It is important to complete the full course of treatment to effectively eliminate the infection.