L-lysine

Reported Doses

Safety/efficacy may not be established; reported doses may be derived from limited or potentially inadequate studies w/ variable regimens, multi-ingredient products, or where concentration of active ingredients may vary widely

Special Note, COVID-19

[no scientific data for COVID-19]

Info: see Herb & Supplement Remedy Use in COVID-19 Resources

Effectiveness Ratings

[see Herb & Supplement Effectiveness Rating Definitions table]

aphthous ulcer (canker sores) prevention

[Insufficient Evidence]

Dose: 500 mg PO qd

aphthous ulcer (canker sores) tx

[Insufficient Evidence]

Dose: 1000 mg PO qid

diabetic foot ulcers

[Insufficient Evidence]

Dose: apply 15% cream topically bid; Info: used w/ standard tx

herpes labialis (cold sores) prevention

[Possibly Effective]

Dose: 1000-1248 mg PO qd; Alt: 1000 mg PO tid

herpes labialis (cold sores) tx

[Possibly Effective]

Dose: 1000 mg PO qd-tid; Alt: apply cream topically q2h

HTN

[Insufficient Evidence]

Dose: 500 mg PO bid

muscle strength

[Insufficient Evidence]

Dose: 80 mg/kg/dose PO qd

pressure ulcer

[Insufficient Evidence]

Dose: apply cream topically qd

schizophrenia

[Insufficient Evidence]

Dose: 6 g/day PO divided qd-tid

stress

[Insufficient Evidence]

Dose: 4.2 g/kg of wheat PO qd; Info: wheat flour fortified w/ lysine