== Health Risks ==
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Official statement from Neurometrix about side effects is that there are none[https://www.quellrelief.com/clinicians]. Usage is 100% drug free, with clearance by FDA (Food and Drug Administration) received in 2014.<ref>NeuroMetrix Begins Shipping Quell Device, June 1, 2015: http:name="shipping"//www.fdanews.com/articles/171428 (Retrieved Dec 15, 2015) </ref>
No side effects mentioned are mentioned. There are some contradictions that patients with cardiac pacemakers or with implanted defibrillator should not use Quell, neither people with implated metallic or electronic devices.<ref>Frequently Asked Questions by Clinicians: https://www.quellrelief.com/clinicians, December 15, 2015</ref> Patient is supposed to consult the using with a doctor. Despite the mentioned contradictions, Quell company says they have customers who have pacemakers and use the device succesfully (See picture).
[[File:Screenshot003.jpg|thumbnail|Quell's responses to the user's question, whether the device is contradicting to tachycardia. https://www.facebook.com/quellrelief/?fref=ts, December 1, 2015]]