Do you frequently use fentanyl if you have access to it?
Have you ever used more fentanyl than you intended to in a day?
Do you use fentanyl for more hours than you did when you started?
Do you need to use more fentanyl to get the same high you had in previous uses?
Do you experience withdrawal symptoms (sweats, anxiety, insomnia, irritability) when you stop using fentanyl?
Have you ever experienced diarrhea, vomiting, or other physical symptoms when you stop using fentanyl?
Have you ever unsuccessfully tried to quit fentanyl?
Has your fentanyl use interfered with your work?
Have you lost or withdrawn more from friends because of your fentanyl use?
Has fentanyl caused you to neglect family or personal responsibilities?
Have you withdrawn or lost interest in your hobbies or social life because of your fentanyl use?
Do you spend a lot of time thinking about fentanyl or how to get more?
Since using fentanyl, have you had dry mouth, irregular behavior, or memory loss?
Since using fentanyl, have you had any heart, lung, or liver problems?
Have you ever been hospitalized because of fentanyl?