Which of the following describes intangible costs of drug therapy?

Intangible costs of drug therapy are those that cannot be easily quantified in monetary terms but significantly impact the patient's quality of life. These costs often include aspects such as inconvenience, pain, and suffering that arise from the disease or the burden of the treatment itself, which may not directly translate into an out-of-pocket expense but nonetheless affect the patient’s overall well-being and experience.

This concept is contrasted with tangible costs, which involve measurable financial expenditures, such as direct medical expenses (like out-of-pocket costs), insurance premiums, and costs associated with follow-up visits. While those can be calculated and stand to reflect a direct financial burden, intangible costs delve into the subjective experiences related to pain, discomfort, and the additional stress associated with treatment, making option B the correct choice.