As for riders, they may not be able to opt for shared rides if they're too inebriated.
A patent application first spotted by CNN reveals that the ride-sharing may be working on an AI technology that automatically detects the state of the app user, if he or she is high or sober, before getting into the vehicle.
Others point out the implementation of the technology could clash with Uber's business model, as many riders use the service to avoid getting behind the wheel after drinking.
"We are always exploring ways that our technology can help improve the Uber experience for riders and drivers", Uber said.
"We file patent applications on many ideas, but not all of them actually become products or features".
The ride hailing service company is working on this technology at the moment as it has filed for a patent for a machine learning application that could accurately predict whether or not a customer is sober, offering this information to the driver.
But critics said it could also be used to identify vulnerable passengers.
Based on how the system interprets that behavior, the company may adjust how it arranges a match with a driver, according to the patent application. This can then be matched with the user's location and the time - near a nightclub and in the early hours, for example. For instance, a user can get matched with a specific driver, the driver can get an alert about the possible state of the passenger and alternate pick up and drop off locations can even be suggested. And when the likelihood is comparatively low, the system may match riders "normally".
While Uber is attempting to rehabilitate its public image, users may be wary of an algorithm that can tell how many cocktails they've downed on a night out.
Jeff Chester, executive director of the nonprofit Center for Digital Democracy, said he anxious that riders who depend on the service for their transportation needs could shy away from it knowing that their drinking habits and health data was being collected.
Uber thinks it might be helpful to know whether a passenger is intoxicated. Some privacy experts question whether the information gathered could end up being stored to track health and lifestyle choices of Uber customers.