<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: Rifaximin Plus Lactulose Is More Efficacious Than Lactulose Alone For The Prevention Of Overt Hepatic Encephalopathy (Ohe) In Patients With Or Without Ascites[/INST] Yes</s>