<s>[INST] Given an abstract text, please determine whether it contains any drug mentions. Provide a 'Yes' or 'No' answer based on the presence or absence of drugs. Abstract Text: Cb-01-35:A Rifamycin In Situ Gel Enema That Demonstrates Superior Efficacy Compared To Mesalamine And Dexamethasone In A Rat Oxazolone Model Of Ulcerative Colitis[/INST] Yes</s>