In a pilot trial by Lonergan et al. (2015), the researchers showed this approach to be quite feasible. They split participants who were dependent on drug or alcohol into two groups: one group would be given propranolol and the other placebo pills.
Each session began by giving the participants a self-report questionnaire to access their severity of alcohol/drug craving. One hour after taking either propranolol or placebo, that is when propranolol was well in effect, both groups were asked to read aloud a detailed narrative of their personal drug-using experiences. In this way, their drug-related memories, which contained numerous cues related to drug use, could be reactivated. Such session was conducted 6 times over a period of 3 weeks.
By the sixth session, subjective craving was significantly lower in the group that had taken propranolol, but not in the group that had taken placebo.