CoQ10 Side Effects
Generic Name: ubiquinone
Note: This document contains side effect information about ubiquinone. Some of the dosage forms listed on this page may not apply to the brand name CoQ10.
Applies to ubiquinone: oral capsule, oral liquid, oral tablet, oral tablet disintegrating
Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Although not all side effects are known, ubiquinone (the active ingredient contained in CoQ10) is thought to be likely safe for most adults when used as directed.
Stop using ubiquinone and call your healthcare provider at once if you have:
very low blood pressure--dizziness, severe weakness, feeling like you might pass out.
Common side effects may include:
upset stomach, nausea, vomiting, loss of appetite;
skin rash; or
low blood pressure.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.
Some side effects may not be reported. You may report them to the FDA.