What people really want to know about cannabis and medications

This study analyzed over 1,800 medication-related questions submitted to Finland's AddictionLink online information service from 2011-2023, with a specific focus on drug interaction inquiries. The research reveals that people are actively seeking information about combining medications with intoxicants, particularly alcohol, stimulants, and cannabis. Among the 242 interaction-related questions, medications most frequently mentioned were antidepressants, opioids, cardiovascular drugs, and benzodiazepines—all commonly used drugs that pose significant interaction risks when combined with other substances.

The findings highlight a critical gap in accessible health information, as cannabis was the third most frequently mentioned intoxicant in interaction questions, after alcohol and stimulants. This suggests that cannabis users and healthcare providers are actively concerned about potential interactions with prescription medications, yet may not have clear, understandable resources available. The study also identified interesting age patterns: teenagers and young adults (13-25 years) and people 46 years or older submitted more interaction-related questions, while middle-aged adults (26-45) focused on other medication concerns—potentially reflecting different risk profiles or health literacy needs across age groups.

The research underscores an urgent public health need: clearer, more accessible information about cannabis-medication interactions and broader substance-drug combinations. As cannabis legalization expands globally and more people use cannabis alongside prescribed medications, ensuring that both patients and healthcare professionals have reliable, easy-to-understand guidance becomes essential for preventing harmful interactions and supporting safer treatment decisions.