🐕 Canine Peptide Reference

Veterinary peptide research structured for dogs. 7 peptides with potential relevance to common canine conditions. All entries include explicit evidence boundaries and extra-label use disclaimers.

Common Canine Conditions with Peptide Research

OsteoarthritisCCL (cranial cruciate ligament) tearsCognitive dysfunction syndromeSeparation anxietyGastric ulcersSoft tissue injuries

BPC-157 (Veterinary)

Human analog: bpc-157
Extra-labelGrade D
Veterinary Evidence

Extensive animal studies (primarily rodents) show accelerated healing of tendons, ligaments, muscle, bone, and gastric mucosa. No published veterinary clinical trials in dogs, cats, or horses. All evidence is extrapolated from rodent models. FDA placed BPC-157 on the Category 2 compounding prohibited list in 2024. This applies to veterinary compounding as well. Obtaining BPC-157 for veterinary use may be legally and practically difficult in the US.

Relevant Conditions
tendon injuryligament spraingastric ulcerwound healing
Cautions for Canines
  • All evidence from rodent models — species translation uncertain
  • No established veterinary dosing or safety data
  • FDA Category 2 listing may prevent legal veterinary compounding in the US
  • Banned by FEI and most racing/performance organizations; competition horses may test positive
  • Should not replace standard rehabilitation protocols (rest, controlled exercise, PRP, shockwave) for tendon/ligament injuries
  • Theoretical interaction with NSAIDs commonly used in equine orthopedic and gastric ulcer management
  • May interact with NSAIDs commonly used in veterinary orthopedics
  • Should not delay or replace established standard-of-care treatments with proven efficacy
  • Document extra-label use and obtain informed consent
Dosing Notes (Not Established)

No established veterinary dosing exists. The doses mentioned in rodent research literature (variously reported as 10 mcg/kg/day) have not been validated in dogs, cats, or horses. Pharmacokinetics, optimal dose, route, frequency, and safety margins are unknown for veterinary species. Any dosing decision is entirely at veterinary discretion with informed owner consent.

TB-500 (Veterinary)

Human analog: tb-500
Extra-labelGrade D
Veterinary Evidence

TB-500 (thymosin beta-4 fragment) has been studied in animal models for wound healing and angiogenesis. No published controlled trials in dogs, cats, or horses. Mechanism data from cell culture and rodent studies only.

Relevant Conditions
soft tissue injurytendon/ligament repairmuscle strain
Cautions for Canines
  • No veterinary safety or efficacy data
  • Thymosin beta-4 has been investigated in cancer contexts — theoretical concern in animals with neoplasia
  • Species translation from rodent data is unvalidated
  • Should not delay or replace established standard-of-care treatments with proven efficacy
  • Document extra-label use and obtain informed consent
Dosing Notes (Not Established)

No established veterinary dosing. Rodent studies used varied protocols. Veterinary discretion required with informed owner consent.

GHK-Cu (Veterinary)

Human analog: ghk-cu
Extra-labelGrade D
Veterinary Evidence

GHK-Cu has documented wound-healing effects in vitro and in small animal models. Some veterinary topical products contain copper peptides. No controlled veterinary clinical trials published. No veterinary data exists for injectable or systemic GHK-Cu use. Only topical application has any theoretical basis in veterinary wound care.

Relevant Conditions
wound healingskin regeneration
Cautions for Canines
  • Topical use only in veterinary context — no injectable veterinary data
  • Copper sensitivity possible in some animals
  • Avoid use in animals with Wilson's disease or copper metabolism disorders
  • Should not delay or replace established standard-of-care treatments with proven efficacy
  • Document extra-label use and obtain informed consent

Thymalin (Veterinary)

Human analog: thymalin
Extra-labelGrade D
Veterinary Evidence

Thymic peptides have been studied in aged animals, primarily in Soviet-era Russian literature that has not been replicated in Western peer-reviewed journals. No modern veterinary clinical trials exist. Evidence quality is extremely limited.

Relevant Conditions
immune senescencerecurrent infectionspost-viral recovery
Cautions for Canines
  • Immunomodulatory effects in animals not well-characterized
  • Potential for immune overstimulation in animals with autoimmune conditions
  • No pharmacokinetic data in dogs or cats
  • Should not delay or replace established standard-of-care treatments with proven efficacy
  • Document extra-label use and obtain informed consent

Selank (Veterinary)

Human analog: selank
Extra-labelGrade D
Veterinary Evidence

Selank is an anxiolytic peptide studied in rodent models. No published veterinary behavioral trials. Mechanism involves modulation of enkephalins and GABA systems, which are conserved across mammals.

Relevant Conditions
anxietybehavioral disordersstress-related GI issues
Cautions for Canines
  • No canine pharmacokinetic or safety data
  • May interact with behavior-modifying medications (SSRIs, trazodone, etc.)
  • Sedation possible at higher doses
  • Unknown effect on seizure threshold; avoid or use extreme caution in epileptic animals
  • Should not delay or replace established standard-of-care treatments with proven efficacy
  • Document extra-label use and obtain informed consent

Semax (Veterinary)

Human analog: semax
Extra-labelGrade D
Veterinary Evidence

Semax is a nootropic peptide studied in rodent models for neuroprotection and cognitive enhancement. No published trials in dogs with cognitive dysfunction syndrome. BDNF/trkB mechanism may be relevant to canine brain aging.

Relevant Conditions
cognitive dysfunction syndromesenilitypost-stroke recovery
Cautions for Canines
  • No canine safety or efficacy data
  • BDNF upregulation may be contraindicated in animals with intracranial neoplasia or history of seizures
  • Interaction with other CNS-active medications unknown
  • Should not delay or replace established standard-of-care treatments with proven efficacy
  • Document extra-label use and obtain informed consent

LL-37 (Veterinary)

Human analog: ll-37
Extra-labelGrade D
Veterinary Evidence

LL-37 is a human cathelicidin antimicrobial peptide with broad-spectrum activity demonstrated in vitro. Veterinary relevance is theoretical — no published clinical trials in animals. Natural cathelicidins exist in most mammals.

Relevant Conditions
skin infectionsbiofilm-related woundschronic otitis externa
Cautions for Canines
  • No veterinary pharmacokinetic or safety data
  • Potential for local irritation at application site
  • Antimicrobial peptides may trigger immune responses in some animals
  • Human-origin peptide may trigger antibody formation in animals; potential for reduced efficacy on repeated use and theoretical immune complex risk
  • Should not delay or replace established standard-of-care treatments with proven efficacy
  • Document extra-label use and obtain informed consent
Veterinary professionals only. All peptides listed here are for extra-label use only. No peptide is FDA-approved for veterinary indications. Evidence grades reflect available published research, not clinical recommendations. All treatment decisions require veterinary discretion within a valid VCPR.