Final answer:
Therapeutic range is the range of plasma drug concentration considered effective and safe. The specific therapeutic levels vary depending on the medication.
Step-by-step explanation:
Therapeutic range for a medication is the range of plasma drug concentration that is considered effective and safe for treating a particular condition. The therapeutic levels of a drug vary depending on the specific medication being used. To achieve therapeutic levels, the drug concentration in the plasma should fall within the desired range.
For example, some antibiotics have a narrow therapeutic range, meaning that the drug concentration should be carefully monitored to ensure it stays within the effective and safe range. If the drug concentration is too low, it may not be effective against the infection. On the other hand, if the concentration is too high, it may lead to toxic side effects.