NutriStack
Carvedilol and L-Carnitine, a synergy.
L-Carnitine supports fatty-acid oxidation in cardiomyocytes and modestly lowers diastolic blood pressure. In heart failure patients on carvedilol, L-carnitine has been used adjunctively to improve cardiac energetics and exercise tolerance.
One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
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From the interaction database
What the row says.
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At a glance
- Substances
- Carvedilol and L-Carnitine
- Pair type
- Synergy
- Evidence (highest tier)
- Moderate
- 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 · Moderate evidence
Synergy
What is happening. L-Carnitine supports fatty-acid oxidation in cardiomyocytes and modestly lowers diastolic blood pressure. In heart failure patients on carvedilol, L-carnitine has been used adjunctively to improve cardiac energetics and exercise tolerance.
Mechanism. L-Carnitine shuttles long-chain fatty acids into mitochondria for beta-oxidation, supporting ATP production. Carvedilol partially inhibits mitochondrial Complex I; carnitine helps offset bioenergetic stress in cardiac muscle.
Recommendation. L-Carnitine 1-2 g/day is generally compatible with carvedilol and may provide additional cardiac support. Discuss with your cardiologist before starting, especially if you have heart failure.
Sources (2)
- 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
- 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
Stack Score
How this pair moves the number.
Effect on the composite score
If both Carvedilol and L-Carnitine 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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