Not For Use With Episodic Migraine: while they say anyone can use the device, the FDA approval is for people who do NOT have chronic Migraine, which is 14 days or more per month. There's also a warning for chronic migraine from medication overuse as well. [1]
Heart Problems: people with migraine, with a history of heart problems are good candidates here because the less-expensive triptan medications just aren’t safe for them to take. [1]
Children: sadly, kids have fewer treatment options than adults. "The company website reports Theranica is vowed to have its risk-free, effective Nerivio cleared for adolescents and kids, and provide them with a comfortable, affordable, easy-to-use, rapid solution for acute Migraine. It’s just not cleared yet."