What are the side effects of Valkee’s earlight?

According to Valkee’s accounts, side effects of the earlight include:

  • headache
  • migraine
  • insomnia
  • nausea
  • vomiting
  • dizziness
  • earache
  • abnormal sensation in the maxillary region
  • tinnitus
  • tiredness
  • irregular heartbeat
  • irritability
  • lightheadedness
  • orthostatic hypotension.

In their negative, unpublished placebo-controlled study, >28% of the users experienced unwanted effects. These are only the spontaneously reported events – an under-reporting inherent to industry-sponsored clinical trials. The real numbers are therefore unknown, but likely to be much higher.

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