<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: New Insights On The Mechanism Of Action Of Hyoscine Butylbromide (Hbb) In The Human Colon:Hbb Modulates Effect Of Neuronal And Non-Neuronal Acetylcholine[/INST] Yes</s>