Final answer:
Disulfiram is used to help individuals quit alcohol, not smoking, opioids, or cocaine. It creates negative reactions to alcohol consumption to deter drinking.
Step-by-step explanation:
Disulfiram is a medication that can be used to support individuals who are attempting to quit alcohol. This drug works by producing unpleasant effects when alcohol is consumed, which can help deter individuals from drinking. Disulfiram is not used for quitting smoking, opioids, or cocaine as it specifically interacts with the metabolism of alcohol in the body. It is essential to understand that overcoming addiction can be a challenging process and that drug withdrawal without medical oversight, especially from substances like alcohol and barbiturates, can be dangerous.