Coenzyme Q10 (CoQ10)
Mitochondrial cofactor; generally well tolerated; caution with warfarin.
By Suplagen Team · Updated
What it is
CoQ10 participates in mitochondrial electron transport and is used for multiple indications; interaction concern exists with warfarin.
How it works
Supports mitochondrial energy production and antioxidant recycling.
What the evidence says
Safety generally favorable; clinical benefit varies by indication and study design.
How much to take
The catalog range is 100 to 300 mg daily, with no formal ceiling. Its safety profile is favorable; the honest part is that clinical benefit varies by indication and study design, which is why we grade its energy evidence limited.
Start at 100 mg. Going higher is reasonable if you're following a specific indication with your doctor; for general use, the low end is enough.
When and how to take it
With a fat-containing meal, midday or with dinner; CoQ10 is fat-soluble and absorbs poorly without fat.
It's often paired with PQQ as a mitochondrial stack, which the catalog lists as synergistic.
Who should skip it
Off-limits in pregnancy per the catalog. The one interaction is the one that matters: warfarin, at high severity. CoQ10 can reduce warfarin's effect, so anyone on it needs a doctor's approval and monitoring. Side effects otherwise are mild GI upset.
Safety Notes
- Side effects are usually mild (GI upset). Main concern is drug interaction.
- Not recommended during pregnancy or while breastfeeding.
- warfarin: May reduce anticoagulant effect; INR monitoring recommended.
Common questions
How much CoQ10 should I take?
100 to 300 mg daily with a fatty meal. Start at 100 mg; there's no formal ceiling, but the evidence doesn't reward high doses for general use.
When should I take CoQ10?
With whichever meal contains the most fat. Time of day doesn't matter; the fat does.
Can I take CoQ10 with warfarin?
Not without your doctor. It's a high-severity interaction in our catalog; CoQ10 can blunt warfarin's effect, which needs monitoring if the combination is used at all.