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What is Dihexa?

The short answer

Dihexa is a compound built to act like a peptide.

  • What it is

    Dihexa: Angiotensin IV analog (peptide-derived).

  • What people look into

    Brain

By Ellum EditorialUpdated AI use

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What it is

Also known as
dihexa acetate, pnb-0408

Regulatory status

Not FDA-approved How we label status

As of October 4, 2026, Dihexa is not FDA-approved for any use and is not on FDA's 503A bulks list.

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Federal (FDA)
Not FDA-approved
503A compounding
No category (nomination withdrawn; removed from Cat 2 2026-04-22); not on 216.23 as of 2026-10-07; not an approved-drug component (as of October 7, 2026)
PCAC history
Scheduled: PCAC 'before the end of February 2027' (no date set)

References

Sources as of October 4, 2026

  1. FDA: www.fda.gov/media/94155/download
  2. FDA: www.fda.gov/drugs/human-drug-compounding/certain-bulk-drug-substances-use-compounding-may-present-significant-safety-risks
  3. FDA: www.fda.gov/advisory-committees/pharmacy-compounding-advisory-committee/meeting-pharmacy-compounding-advisory-committee
  4. eCFR: www.ecfr.gov/current/title-21/chapter-I/subchapter-C/part-216/subpart-B/section-216.23
  5. FDA: api.fda.gov/drug/drugsfda.json