Comparison
Coenzyme Q10 vs Low-Dose Naltrexone
Side-by-side of Coenzyme Q10 and Low-Dose Naltrexone. Every row below is pulled from the compound schema and will update as our data grows. For deeper reads, follow through to each compound page.
Coenzyme Q10
CoQ10 supplement guide: 100 to 300 mg/day dosing, ubiquinol vs ubiquinone absorption, Q-SYMBIO heart failure data, statin myalgia evidence.
Low-Dose Naltrexone
Low dose naltrexone at 1.5 to 4.5 mg, one-tenth the 50 mg addiction dose. Compounded Rx. Small trials in fibromyalgia, Crohn's, Hashimoto's.
Effects at a glance
Coenzyme Q10
- •Q-SYMBIO trial showed 43% reduction in major cardiovascular events at 300 mg/day in heart failure
- •Reduces statin-induced myalgia in some patients at 100-200 mg/day per Banach 2014 meta-analysis
- •Migraine prophylaxis at 300 mg/day daily; AHS lists at Level B for prevention
- •Ubiquinol absorbs 2-3x better than ubiquinone in adults over 60
- •Plasma CoQ10 falls 15-40% with chronic statin therapy
- •Small blood pressure reduction (3-5 mmHg systolic) at 100-200 mg/day
Low-Dose Naltrexone
- •Off-label use at 1.5 to 4.5 mg, roughly one-tenth the FDA-approved 50 mg addiction-treatment dose
- •Proposed mechanisms include brief opioid receptor blockade triggering rebound endogenous opioid release, plus TLR4 antagonism
- •Compounded prescription only; insurance rarely covers; cash prices 20 to 80 USD per month
- •Younger 2013 reported ~30% pain reduction in fibromyalgia at 4.5 mg in a small crossover trial
- •Smith 2011 reported endoscopic improvement in active Crohn's disease (n=40 placebo-controlled)
- •Vivid dreams affect 20 to 40% in first 2 weeks; manageable by switching to morning dosing
Side-by-side
| Attribute | Coenzyme Q10 | Low-Dose Naltrexone |
|---|---|---|
| Category | supplement | pharmaceutical |
| Also known as | CoQ10, ubiquinone, ubiquinol, Q10 | LDN, naltrexone (low dose) |
| Half-life (hr) ↗ | 34 | 4 |
| Typical dose (mg) ↗ | 200 | 4.5 |
| Dosing frequency | 1 to 3 times daily with a fat-containing meal | once daily, typically at bedtime |
| Routes | oral | oral |
| Onset (hr) | 6 | 1 |
| Peak (hr) | 720 | 1.5 |
| Molecular weight | 863.36 | 341.4 |
| Molecular formula | C59H90O4 | C20H23NO4 |
| Mechanism | Mobile electron carrier between Complex I/II and Complex III of the mitochondrial electron transport chain. Ubiquinol form acts as a lipid-soluble antioxidant in cell membranes and regenerates oxidized vitamin E. | Brief mu-opioid receptor antagonism proposed to trigger compensatory upregulation of endogenous opioids; secondary TLR4 antagonism on microglia and immune cells contributes to anti-inflammatory effect. |
| Legal status | Dietary supplement (most jurisdictions); prescription cardiac medication in Japan | Off-label compounded prescription (naltrexone is FDA approved for opioid and alcohol use disorder at 50 mg) |
| WADA status | allowed | allowed |
| DEA / Rx | Not scheduled | Rx only (not a controlled substance) |
| Pregnancy | Limited safety data; precautionary use at standard doses | Insufficient data; not routinely recommended |
| CAS | 303-98-0 | 16590-41-3 |
| PubChem CID | 5281915 | 5360515 |
| Wikidata | Q140453 | Q426444 |
Safety profile
Coenzyme Q10
Common side effects
- mild GI upset (rare)
- headache (rare)
- insomnia at very high doses
Contraindications
- active warfarin therapy without monitoring (modest interaction with INR)
Interactions
- warfarin: structural similarity to vitamin K may modestly reduce warfarin efficacy; monitor INR(moderate)
- antihypertensives: additive blood pressure-lowering at high doses(minor)
- statins: statins reduce CoQ10 synthesis; CoQ10 supplementation does not affect statin efficacy(minor)
- chemotherapy (oxidative-stress-dependent agents): theoretical interference; coordinate with oncology team(moderate)
Low-Dose Naltrexone
Common side effects
- vivid dreams
- sleep disruption
- headache
- mild GI upset
- fatigue (early)
Contraindications
- concurrent opioid use
- acute hepatitis or liver failure
- opioid dependence
- pregnancy (insufficient data)
Interactions
- opioid analgesics (oxycodone, morphine, codeine): blocks analgesic effect; precipitates withdrawal in dependent users(major)
- tramadol: blocks opioid component of analgesia(major)
- thyroid hormone replacement: may alter dose requirements after immune modulation; monitor TSH(minor)
Which Should You Take?
Coenzyme Q10 comes out ahead for most readers on the criteria we weight: 3 catalogued goals, OTC dietary supplement, oral dosing, with a Tier-A outcome catalogued. Low-Dose Naltrexone is the right call when one of the conditionals below applies.
- → If your priority is cardiovascular health, pick Coenzyme Q10.
- → If your priority is healthspan extension, pick Coenzyme Q10.
- → If your priority is immune support, pick Low-Dose Naltrexone.
- → If your priority is pain modulation, pick Low-Dose Naltrexone.
Edge case: If you want to avoid prescription-only, Coenzyme Q10 is the more accessible choice.
Default choice: Coenzyme Q10. Lower friction to source, a Tier-A evidence outcome catalogued, and broader goal coverage. Reach for Low-Dose Naltrexone only if your priority sits squarely in the goals it owns above.
This verdict is generated from each compound's schema (goals, legal status, evidence outcomes, dosing route). It updates automatically as our compound data evolves; the deeper read sits on each individual compound page.
Common questions
What is the difference between Coenzyme Q10 and Low-Dose Naltrexone?
Coenzyme Q10 and Low-Dose Naltrexone differ in category (supplement vs pharmaceutical), mechanism, and typical dosing. See the side-by-side table for full details.
Which has a longer half-life, Coenzyme Q10 or Low-Dose Naltrexone?
Coenzyme Q10 half-life is 34 hours; Low-Dose Naltrexone half-life is 4 hours.
Can you stack Coenzyme Q10 with Low-Dose Naltrexone?
Stack compatibility depends on mechanism overlap, legal status, and individual response. Check each compound page for specific interactions and contraindications before combining.
Go deeper