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D-L meth-e-o-NEEN - Pronunciation guide

Brand Names

  • BioMeth Powder
  • d-l-Methionine Powder
  • DL-Methionine Tablets


DL-Methionine is an essential amino acid containing sulfur that is manufactured synthetically and used in dietary supplements and pharmaceuticals.


DL-Methionine, in combination with biotin, zinc sulfate, and magnesium oxide, is used as a dietary supplement.

DL-Methionine is also added to feed when the nutrients involved in keratin may be low, resulting in the need for a supplement that will lead to hoof repair and aid in the treatment of laminitis in horses.

Dosage and Administration

Prescription medicationCyproheptadine
Method Dosage
(click row for calculator)
Concentration Period Duration
Oral 20-50 mg/kg 1 mg/mg 1 Daily NA


  • Pure form. When included as part of a supplement, follow the manufacturer's directions.
  • >
  • Calculator is for educational purposes only. Follow your veterinarian's instructions regarding use of this, or any medication.
Method Amount Dosage Period Duration Note
Oral 1 Scoop Daily 6 - 9 months Mix with feed. 1 scoop = 15 grams.

Read manufacturer's instructions carefully.

Side Effects

None found in available literature


None found in available literature


None found in available literature


No information found in available literature


Bio-Meth PowderBio-Meth Powder

DL-Methionine TabletsDL-Methionine Tablets


About the Author

EquiMed Staff

EquiMed staff writers team up to provide articles that require periodic updates based on evolving methods of equine healthcare. Compendia articles, core healthcare topics and more are written and updated as a group effort. Our review process includes an important veterinarian review, helping to assure the content is consistent with the latest understanding from a medical professional.