The Catalan study explores clinicians' opinions on tobacco cessation services for cannabis users, revealing profound co-use rates, systemic barriers to treatment, and the need for integrated services. It advocates for better training, customized strategies, and coordination to improve public health outcomes. The document focuses on a study conducted in Catalonia, Spain, and the findings are based on the perspectives of clinicians within that specific region. However, the themes addressed, such as systemic barriers, the high prevalence of co-use of cannabis and tobacco, and the need for integrated harm-reduction strategies, are globally relevant.