NutriStack
Acetyl-L-Carnitine and Carvedilol, a synergy.
Acetyl-L-carnitine supports fatty-acid oxidation and mitochondrial function in cardiac muscle. Carvedilol partially inhibits mitochondrial Complex I, so ALCAR's bioenergetic support may help offset this effect, especially in heart failure or ischemic cardiomyopathy.
One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
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At a glance
- Substances
- Acetyl-L-Carnitine and Carvedilol
- Pair type
- Synergy
- Evidence (highest tier)
- Emerging
- Source citations
- 2 sources
- Stack Score effect
- +2 to your Stack Score (per scored synergy row).
- Scope
- Supplement × Prescription
- Last verified
- May 30, 2026
Synergy · Emerging evidence
Synergy
What is happening. Acetyl-L-carnitine supports fatty-acid oxidation and mitochondrial function in cardiac muscle. Carvedilol partially inhibits mitochondrial Complex I, so ALCAR's bioenergetic support may help offset this effect, especially in heart failure or ischemic cardiomyopathy.
Mechanism. ALCAR provides acetyl groups for energy metabolism and shuttles fatty acids into mitochondria for oxidation. Carvedilol's modest inhibition of NADH-ubiquinone oxidoreductase (Complex I) can be partially offset by improved substrate availability.
Recommendation. Acetyl-L-carnitine 500-1500 mg/day is generally compatible with carvedilol and may add cardiac benefit. Discuss with your cardiologist before starting, especially if you have heart failure.
Sources (2)
- Cocco T, Cutecchia G, Montedoro G, Lorusso M. The antihypertensive drug carvedilol inhibits the activity of mitochondrial NADH-ubiquinone oxidoreductase. J Bioenerg Biomembr. 2002;34(4):251-8. PMID 12392188
- Askarpour M, Hadi A, Dehghani Kari Bozorg A, et al. Effects of L-carnitine supplementation on blood pressure: a systematic review and meta-analysis of randomized controlled trials. J Hum Hypertens. 2019;33(10):725-734. PMID 31481697
Stack Score
How this pair moves the number.
Effect on the composite score
If both Acetyl-L-Carnitine and Carvedilol are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).
The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.
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