Vapes for migraines and asthma? Companies seek to speed up relief time, but some have concerns

A handful of North American companies which see potential for vape-like devices to ease migraines and respiratory diseases such as asthma have a long road to convince health authorities and patients that their products can be the future of inhaled medication. Two companies, Qnovia and MIIST Therapeutics, have developed vape-like devices based on technology used in existing medical nebulisers, which turns liquid medications into a fine mist. Another company, Greentank, says it...