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Acetyl-L-Carnitine

How does Acetyl-l-carnitine work?

Acetyl-L-carnitine helps the body produce energy. It is important for heart and brain function, muscle movement, and many other body processes.

Are there safety concerns?

Acetyl-L-carnitine seems to be safe for most adults. It can cause some side effects including stomach upset, nausea, vomiting, and restlessness. It can cause a "fishy" odor of the urine, breath, and sweat.

Do not take acetyl-L-carnitine if:
  • You are pregnant or breast-feeding.
  • You have had seizures.
  • You have thyroid problems.

Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.






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