What is L-Carnitine (levocarnitine)?

The short answer

L-Carnitine is a compound that the body makes, also found in meat and milk.

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What it is

Type
Amino-acid derivative (not a peptide)
Also known as
l-carnitine injection

Regulatory status

FDA-approved (Rx) How we label status

As of October 7, 2026, L-Carnitine (levocarnitine) is an FDA-approved prescription drug for primary systemic carnitine deficiency; secondary carnitine deficiency from inborn errors of metabolism; carnitine deficiency in end-stage renal disease on dialysis (injection).

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Federal (FDA)
Approved Rx as levocarnitine (Carnitor tablets NDA018948 1985, oral solution NDA019257 1986, injection NDA020182 1992; generics); also sold as a dietary supplement
503A compounding
Approved-drug component (not in any 503A category) (as of May 14, 2026)
WADA 2026
Not named

References

Sources as of October 7, 2026

  1. DailyMed: dailymed.nlm.nih.gov/dailymed/drugInfo.cfm (1 of 2)
  2. DailyMed: dailymed.nlm.nih.gov/dailymed/drugInfo.cfm (2 of 2)
  3. Drugs@FDA: www.accessdata.fda.gov/scripts/cder/daf/index.cfm
  4. FDA: www.fda.gov/media/94155/download
  5. WADA: www.wada-ama.org/sites/default/files/2025-09/2026list_en_final_clean_september_2025.pdf