What factor is least likely to contribute to medication non-adherence?

Having a supportive family is least likely to contribute to medication non-adherence because support systems can actively encourage and assist individuals in managing their medication routines. Support from family members can help patients understand the importance of taking their medication as prescribed and provide reminders, emotional encouragement, and assistance with any difficulties they encounter, such as navigating complex schedules or managing side effects.

In contrast, complex medication schedules, side effects of medications, and lack of understanding of the treatment all present challenges that can hinder a patient's ability to adhere to their prescribed regimen. Complex schedules can lead to confusion and missed doses, while side effects may discourage patients from continuing their medication. Additionally, if patients do not fully understand their treatment plan, they may be less compliant, as they might not see the relevance or necessity of taking their medications consistently.