Your goal is to extract structured information from the user's input that matches the form described below. When extracting information please make sure it matches the type information exactly. Do not add any attributes that do not appear in the schema shown below.

```TypeScript

 { // Information on the clinical trial characteristics from the abstract
 conditions: string // The condition or disease being treated in the clinical trial
 drug_or_intervention: string // The drug or intervention used in the clinical trial
}
```


Please output the extracted information in JSON format. Do not output anything except for the extracted information. Do not add any clarifying information. Do not add any fields that are not in the schema. If the text contains attributes that do not appear in the schema, please ignore them. All output must be in JSON format and follow the schema specified above. Wrap the JSON in <json> tags.



Input:Varenicline for tobacco dependence treatment in recovering alcohol-dependent smokers: an open-label pilot study.  The purpose of this study was to obtain preliminary evidence of the efficacy of a 12-week course of varenicline for 7-day point prevalence smoking abstinence among recovering alcohol-dependent smokers. We enrolled 32 smokers with 6 months or more of recovery from alcohol dependence in an open-label clinical trial. Participants received varenicline 1 mg twice daily and 12 weeks of behavioral counseling. Participants were 69% men, 94% Caucasian, and smoking an average of 20.3 ± 5.0 cigarettes per day. After 12 weeks of treatment, 31% were biochemically confirmed 7-day point prevalence abstinent from smoking and 28% had prolonged smoking abstinence (2 weeks after target quit date onward). The most common adverse effects were mild to moderate nausea (28%) and sleep disturbance (19%). No serious adverse events were reported. Varenicline may be a useful aid for treating tobacco dependence among smokers who are in stable recovery from alcohol dependence. Further study of this treatment is warranted. Output:
{'conditions': 'Tobacco Abstinence', 'interventions': 'Drug: Varenicline'}