If you are standing when you get lightheaded, sit down immediately, and lie down if necessary. Coenzyme Q is a popular treatment among patients for a variety of medical conditions. However, there is as of yet no strong evidence in the scientific medical literature that it works. The only way to really know if a medicine works is through large clinical trials involving thousands of patients. If you want to try experimental therapies, you should only do so in the context of a legitimate clinical trial.
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