Statins do lower CoQ10 levels in the blood. Multiple studies have found that statins lower circulating CoQ10 levels, with one trial showing atorvastatin cut blood CoQ10 by roughly 51% in 30 days. The harder question is whether that drop matters clinically, especially for muscle pain. So far, the evidence says yes to the first question, but not clearly to the second.
Why This Question Matters
Statins are among the most widely prescribed drugs in the United States, taken by tens of millions of people to lower LDL cholesterol and reduce heart disease risk. For many people, statins are effective and well tolerated.
But a notable share experience muscle-related side effects. In atorvastatin clinical trials summarized in product labeling, reported rates included myalgia 3.5%, muscle spasms 3.6%, and musculoskeletal pain 3.8%. These figures come from trial data in the label and are not a universal estimate for all statin users. For people dealing with those symptoms, the question of statins and CoQ10 depletion feels very personal.
CoQ10 (coenzyme Q10, also called ubiquinone) is a compound your body makes naturally. It is central to energy production inside your cells, especially in muscle tissue. So if statins lower CoQ10, it seems reasonable to wonder whether that is connected to muscle aches.
That is the question this article addresses.
How Statins Lower CoQ10 Levels
To understand why statins affect CoQ10, you need to know one thing about how both cholesterol and CoQ10 are made in your body.
Both are produced through the same biochemical route, called the mevalonate pathway. Statins work by blocking an enzyme called HMG-CoA reductase, which is an early step in that pathway. That blockage is what lowers your cholesterol. But because CoQ10 is also made downstream of that same step, statin use reduces CoQ10 synthesis at the same time.
This mechanism is biologically plausible and widely accepted: statins inhibit HMG-CoA reductase in the mevalonate pathway, which is involved in the synthesis of both cholesterol and coenzyme Q10. However, a drop in blood levels does not necessarily prove clinically meaningful depletion inside muscle cells.
How Much Does Each Statin Lower CoQ10?
A 2015 meta-analysis by Banach et al. pooled data from 8 placebo-controlled trials and found that all statins significantly lowered plasma CoQ10 (weighted mean difference: -0.44 µmol/L, p<0.001). The three most common statins compared as follows:
| Statin | CoQ10 Reduction (µmol/L) |
|---|---|
| Atorvastatin (Lipitor) | -0.41 |
| Simvastatin (Zocor) | -0.47 |
| Rosuvastatin (Crestor) | -0.49 |
The reductions were consistent whether the statin was lipophilic or hydrophilic, and whether the treatment lasted under or over 12 weeks.
An earlier 2004 trial by Rundek et al. looking specifically at atorvastatin CoQ10 depletion found blood CoQ10 dropped from 1.26 µg/mL at baseline to 0.62 µg/mL after 30 days, a roughly 51% reduction. That drop was measurable within just 14 days of starting the medication.
An Important Nuance About "Depletion"
One nuance worth knowing: CoQ10 travels in your bloodstream attached to LDL particles. When statins lower your LDL, some of the measured CoQ10 drop in blood tests reflects fewer LDL carriers, not just reduced CoQ10 synthesis. This means blood plasma measurements may overestimate how much your cells are actually losing.
The drop in circulating CoQ10 is well documented, but it does not necessarily show how much CoQ10 is reduced inside muscle tissue. Intramuscular CoQ10 levels do not always track with plasma levels.
Does Lower CoQ10 Cause Muscle Pain?
This is the central question. The short answer: we do not know for certain.
A 2007 systematic review by Marcoff and Thompson in JACC looked at this directly. Their conclusion: statin therapy does reduce circulating CoQ10, but "there is insufficient evidence to prove the etiologic role of CoQ10 deficiency in statin-associated myopathy." The evidence for CoQ10 supplementation relieving muscle symptoms was described as "scarce and contradictory."
The 2026 ACC/AHA Guideline on the Management of Dyslipidemia states that routine use of coenzyme Q10 is not recommended to treat or prevent statin-attributed muscle symptoms. This reflects the current lack of proven clinical benefit in trials, rather than a finding that CoQ10 is harmful.
Note that neither the atorvastatin prescribing information nor most statin labels mention CoQ10 at all.
Why the uncertainty? Mainly because it is hard to separate CoQ10 depletion effects from other things statins do to muscles. Intramuscular CoQ10 levels inside the muscle cells themselves do not always match what blood tests show. Some studies have found CoQ10 supplements help with muscle pain in statin users; others have found no benefit. The results are genuinely split.
Should You Take CoQ10 With Statins?
A fair summary of where the research actually lands:
- The depletion of blood CoQ10 by statins is real and well-documented
- Whether that depletion causes muscle symptoms is not proven
- The 2026 ACC/AHA Guideline states that routine CoQ10 use is not recommended to treat or prevent statin-attributed muscle symptoms, reflecting a lack of proven clinical benefit rather than a safety concern
- Some patients report improvement; clinical trial results are inconsistent
According to NIH StatPearls, CoQ10 is generally well-tolerated. It does not have FDA approval to treat any medical condition, and it is available over the counter as a dietary supplement.
Before you decide, there is one safety issue worth understanding.
CoQ10 and warfarin: important safety warning. CoQ10 may reduce the effectiveness of warfarin in some patients. Anyone taking warfarin should speak with a clinician before starting CoQ10 and may need closer INR monitoring. Evidence for interactions with other anticoagulants (such as DOACs like rivaroxaban or apixaban) is less clear, but if you take any blood thinner, mention it to your doctor or pharmacist before starting any new supplement.
If you do want to try CoQ10 and your doctor is on board, see our article on when to take CoQ10 for timing guidance.
If muscle symptoms are interfering with daily life, talk to your prescriber. Do not stop your statin on your own — stopping statin therapy without medical guidance can significantly increase your cardiovascular risk. Depending on your situation, your prescriber may consider checking for other causes, adjusting the dose, switching to a different statin, trying a different dosing schedule, or using additional nonstatin therapy.
For general context on your statin schedule, see when to take atorvastatin or when to take rosuvastatin.
How Pillo Helps
If you want help tracking your medications and checking for medication-related safety concerns, Pillo includes a Drug-Induced Nutrient Loss Checker as part of its free Safety Checker. If you are on a statin, you can look up which nutrients your medication may affect (CoQ10 is one of them) and use that information as a starting point for a conversation with your doctor or pharmacist.
This works for all your medications, not just statins. Saves you from digging through medical journals to answer a basic question.
You can also use the interaction checkers overview to see what other safety tools are available for managing your medications.
If you take statins and want to stay on top of your medication routine, Pillo is free on Android.
Related reading: What to do if you miss a statin dose | Medications after a heart attack
FAQ
Do all statins deplete CoQ10?
Yes. A 2015 meta-analysis confirmed that atorvastatin, simvastatin, and rosuvastatin all significantly lower plasma CoQ10. The effect appears consistent across both lipophilic and hydrophilic statins.
How much does a statin lower CoQ10 levels?
Blood CoQ10 can drop substantially. In one 30-day atorvastatin trial, atorvastatin reduced blood CoQ10 by roughly 51%. Across the meta-analysis, the average plasma reduction across statins was -0.44 µmol/L.
Should I take CoQ10 with atorvastatin?
There is no current medical recommendation to do so for muscle symptoms. The 2026 ACC/AHA Guideline states that routine CoQ10 use is not recommended to treat or prevent statin-attributed muscle symptoms, based on insufficient evidence of benefit. If you are considering CoQ10, talk with your doctor first. If you take warfarin, this conversation is especially important, as CoQ10 may reduce warfarin's effectiveness and require closer INR monitoring.
Can CoQ10 supplements reduce statin side effects?
Some small trials have shown modest benefit for muscle pain; others have found no significant effect. The evidence does not point clearly in either direction. The 2026 ACC/AHA guideline does not support routine CoQ10 use for this purpose based on current data.
Should I stop my statin if I think it's causing muscle pain?
No. Do not stop a statin on your own without speaking with your prescriber. Muscle symptoms have several possible causes, and stopping statin therapy without medical guidance can significantly increase your cardiovascular risk. Your prescriber can evaluate whether the symptoms are statin-related, consider other causes, and discuss options such as dose adjustment, a different statin, or a different dosing schedule.
When should I take CoQ10 if I'm on a statin?
CoQ10 is fat-soluble, so it is best absorbed with a meal that contains some fat. For specific timing guidance, see our article on when to take CoQ10. There is no known pharmacokinetic interaction between CoQ10 and statins themselves, but if you take warfarin, talk to your doctor before starting CoQ10, as it can reduce warfarin's effectiveness and require INR monitoring.
Medical Disclaimer: This article is for informational purposes only and does not constitute medical advice. Statins and CoQ10 supplements can interact with other medications and may not be appropriate for everyone. Do not start, stop, or change any medication or supplement without consulting your doctor or pharmacist. The information here is based on published research available as of April 2026 and may not reflect the most current clinical guidelines.
Consult your doctor or pharmacist for advice specific to your medications.
