What are the pharmacological agent(s) used to manage the substance of abuse long-term?

A guide on how to reference, including Vancouver and APA styles are available through the University of Newcastle weblinks:
Question
please discuss the pharmacology of the substance of abuse, and all the usual pharmacological management options for the long-term management, for your chosen case scenario. In particular:
What is the pharmacology of the substance being abused, paying particular attention to the pharmacokinetics and pharmacodynamics, and the mechanism of how the substance produces dependence and/or tolerance?
What are the pharmacological agent(s) used to manage the substance of abuse long-term?
Please note that students are expected to choose at least one pharmacological agent for their chosen case scenario. Also note that you should only discuss the long-term pharmacological management options of the substance that is abused and not any acute, withdrawal management options (unless they also are used for long-term management). Presentation of some aspects of pharmacology information in table format will be accepted. Students should take careful note of the marking rubric when writing their assignment.
case scenario.
Cassidy is a 40-year-old female who is seeing you today for advice around alcohol consumption following encouragement by friends. Cassidy is currently separated from her husband and they have two children aged 8 and 10. She is working part time as an Assistant in Nursing and enjoys her job. With the exception of staying at home when the children were younger, she has always maintained employment. Cassidy has limited family support as she has one brother and both her parents are ageing and unable to help look after the children. Her family members are reported to be social drinkers, though her maternal grandfather was described as a heavy drinker.
Cassidy started drinking alcohol socially from the age of 16, with regular drinking (mainly on weekends) occurring 7 years ago, 12 months after the birth of her last child. For the past year, she has been drinking between 2 to 3 litres of wine across the week, with her alcohol consumption being heavier on the weekends and non-work days. On these days, her drinking is beginning to start around lunch time, stops when the school day ends and recommences when she is cooking tea. On work days, Cassidy begins drinking whilst cooking tea. On all nights, her drinking session usually
does not end until she goes to bed. During your assessment, you note that Cassidy is concerned about: starting to be snappy with the children; not being the mother she used to be; wanting to drink more; and finding it difficult to get up in the morning.
please add diagrams too , when explaining