Final Answer:
The misfilling of a prescription, resulting in the wrong strength of the prescribed drug, can be classified as both adulterated and misbranded.
Step-by-step explanation:
Misfilling a prescription, where the wrong strength of a drug is provided, falls under the purview of both adulteration and misbranding. Adulteration refers to any substance that is added to a drug to decrease its quality or effectiveness. In the context of a misfilled prescription, providing the wrong strength can compromise the intended therapeutic effect, thus constituting adulteration.
Misbranding, on the other hand, involves issues with the labeling or information provided about the drug. Providing the incorrect strength is a form of misbranding, as it misrepresents the characteristics of the drug. In terms of calculations, the severity of the issue depends on the therapeutic index of the drug - the ratio of the dose that causes toxicity to the dose that provides therapeutic benefit. If the prescribed strength significantly deviates from the intended dosage, it can lead to adverse effects or therapeutic failure.
The calculation involves assessing the prescribed strength against the standard recommended dose, considering factors such as the patient's weight and medical condition. This demonstrates how a misfilled prescription not only violates regulations related to drug quality and information but also poses a direct risk to patient safety. Both adulteration and misbranding charges can be applicable, reflecting the dual nature of the violation involving both the physical drug composition and the information associated with it.