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FILE - In this Monday, Jan. 23, 2012 still file photo taken from video, students try free samples of AeroShot, an inhalable caffeine packed in a lipstick-sized canister, on the campus of Northeastern University in Boston. The Food and Drug Administration will investigate the safety and legality of the product created by Harvard biomedical engineering professor David Edwards. (AP Photo/Rodrique Ngowi, File)

Inhalable caffeine reviewed by FDA

U.S. Food and Drug Administration officials plan to investigate whether inhalable caffeine sold in lipstick-sized canisters is safe for consumers and if its manufacturer was right to brand it as a dietary supplement.