[#item_full_content] The Maine Office of Cannabis Policy (OCP) warned medical marijuana consumers of contaminated cannabis concentrate found to contain dangerous levels of butane. [RELATED: Weed Grower Who Speaks Cantonese Reports Armed Robbery at Belgrade Grow Site…] “Inhaling cannabis containing unsafe levels of butane may cause respiratory irritation with symptoms such as coughing, sneezing, nasal discharge, headache, 
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Maine Office of Cannabis Policy Issues Advisory after Butane Found in Strain of Medical Cannabis
ByPot Shop News
September 21, 2026