Drug X has a toxic dose of 100mg/kg and a therapeutic dose of 10mg/kg.  Drug Y also has a toxic dose of 100mg/kg but a therapeutic dose of 20mg/kg.  A.     What is the chemotherapeutic index of drug X and drug Y? B.     Which drug would be preferred to be used by physicians and why?

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Substance Abuse

Substance abuse refers to the use of illegal drugs in excessive quantities, as well as the misuse of legal substances such as prescription or over-the-counter pharmaceuticals or alcohol for purposes other than those intended. Drug addiction, also known as substance use disorder, is a disease that affects the brain and behavior of a person. It leads to a failure to control the use of any drug or prescription, legal or illegal.