Final answer:
Haloperidol is the psychotropic medication that is not affected by tobacco smoking.
Step-by-step explanation:
The medication that is not affected by tobacco smoking in reducing its levels is Haloperidol.
Psychotropic medications are drugs that affect the brain, mood, perception, and behavior. Tobacco smoking can significantly reduce the levels of these medications in the body, leading to a decrease in their effectiveness. However, Haloperidol is not influenced by tobacco smoking in the same way as other psychotropic medications.
For example, medications like Clozapine, Olanzapine, Risperidone, and Amitriptyline can have their levels reduced in heavy tobacco smokers, affecting their therapeutic effects.