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Cigars (eg, large manufactured cigars, cigarillos) are among the most used combustible tobacco products in the USA.1 2 Some of the popularity of cigars may be driven by the ability to modify them to smoke cannabis ‘blunts’ (ie, hollowed-out cigars filled with cannabis or a mixture of tobacco and cannabis).3–5 Smoking blunts could expose users to greater levels of carcinogens than smoking either cannabis or tobacco alone,6 and, among adolescents and young adults who smoke cigarettes and use cannabis, those who use blunts have greater dependence on nicotine and cannabis than those who use cannabis in forms other than blunts.7 8 Concerningly, blunt use is elevated among individuals who are young, black, or who have substance use disorders.8–10
Blunts can be made using blunt wraps—external wraps typically made of tobacco leaf. However, ‘tobacco-free blunt wraps’ are widely available (eg, convenience stores, tobacco retailers, online). These products do not contain nicotine or tobacco; they are made of products including hemp, banana leaves, palm leaves, and …