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BPC-157 with TB-500

Mechanism-tag overlap and published literature for BPC-157 and TB-500, pulled verbatim from each Kalios compound profile. Kalios is a literature reference, not a recommendation.

Mechanism overlap

Mechanism tags are verbatim labels on each compound's profile. Generic tags ("peptide", "small-molecule", "research-chemical") are excluded from this overlap view. Tags are descriptive — not an inference about combined effect.

BPC-157 TB-500 2 UNIQUE TAGS 2 UNIQUE TAGS 0 SHARED
BPC-157 unique cytoprotectiontissue-repair
Shared none
TB-500 unique angiogenesissystemic-tissue-repair

Co-administration notes from the literature

Verbatim summary text pulled from each compound's profile data. Researchers studying BPC-157 and TB-500 have published these mechanism-level observations. Not a co-administration recommendation.

Evidence level: mechanistic only

a frequently studied combination for tissue repair. BPC-157 works primarily through local angiogenesis and growth factor upregulation; TB-500 acts systemically through actin polymerization and cell migration. Complementary mechanisms targeting different repair pathways. Commercially frequently described as a co-administration involving BPC-157 + TB-500 co-administration."

Evidence level: mechanistic only

a frequently studied combination for tissue repair. BPC-157 acts primarily locally through VEGFR2/NO/FAK pathways; TB-500 acts systemically through actin-mediated cell migration. Mechanistically complementary. frequently described as a co-administration involving BPC-157 + TB-500 co-administration."

Quick facts

BPC-157

RouteSubQ / Oral / IM
Half-life<30 min (plasma)
FDA statusCategory 2 (reclassification pending)
WADABanned (S0, 2022)
Full BPC-157 profile →

TB-500

RouteSubQ / IM
Half-life~2–3 days
FDA statusCategory 2; RGN-259 Phase 3
WADABanned (S2, since 2011)
Full TB-500 profile →

Literature table

Classified references from each compound profile. Click a column header to sort. Click a PMID to open PubMed. Findings are quoted verbatim from each profile's literature_summary; nothing here is added or interpreted.

Year Compound Source Finding
2025BPC-157Vasireddi N, Hahamyan H, Salata MJ, Karns M, Calcei JG, Voos JE, Apostolakos JM. Emerging Use of BPC-157 in Orthopaedic Sports Medicine: A Systematic Review. HSS J. 2025. PMID: 40756949. (544 articles screened, 36 studies included — the single most comprehensive systematic revie… PMID 40756949systematic review
BPC-157ClinicalTrials.gov. Study of PL 14736 in Subjects With Ulcerative Colitis. NCT05765058.human trial
2025BPC-157Lee E, Burgess K. Safety of Intravenous Infusion of BPC157 in Humans: A Pilot Study. Altern Ther Health Med. 2025. PMID: 40131143. PMID 40131143human pilot
2024BPC-157Lee E, Walker C, Ayadi B. Effect of BPC-157 on Symptoms in Patients with Interstitial Cystitis: A Pilot Study. Altern Ther Health Med. 2024;30(10):12-17.human pilot
2020BPC-157Xu C, Sun L, Ren F, Huang P, Tian Z, Cui J, et al. Preclinical safety evaluation of body protective compound-157, a potential drug for treating various wounds. Regul Toxicol Pharmacol. 2020;114:104665. (Independent safety study in mice, rats, rabbits, and dogs — no LD1 identifie…preclinical, in vivo
2006BPC-157Krivic A, Majerovic M, Jelic I, Seiwerth S, Sikiric P. Achilles detachment in rat and stable gastric pentadecapeptide BPC 157: Promoted tendon-to-bone healing and opposed corticosteroid aggravation. J Orthop Res. 2006;24(5):982-989. PMID: 16583442. PMID 16583442preclinical, in vivo
2003BPC-157Staresinic M, Sebecic B, Patrlj L, et al. Gastric pentadecapeptide BPC 157 accelerates healing of transected rat Achilles tendon and in vitro stimulates tendocytes growth. J Orthop Res. 2003;21(6):976-983. PMID: 14554208. PMID 14554208preclinical, in vivo
2025BPC-157McGuire FP, Martinez R, Lenz A, et al. Regeneration or Risk? A Narrative Review of BPC-157 for Musculoskeletal Healing. Curr Rev Musculoskelet Med. 2025;18(12):611-619. PMID: 40789979. PMID 40789979review
2025BPC-157FDA. Bulk Drug Substances That Raise Significant Safety Risks (Category 2) Under Section 503A / 503B. FDA.gov. Updated 2025.regulatory / registry
BPC-157USADA. BPC-157: Experimental Peptide Creates Risk for Athletes. U.S. Anti-Doping Agency. usada.org.regulatory / registry
2025BPC-157Józwiak M, Bauer M, Kamysz W, Kleczkowska P. Multifunctionality and Possible Medical Application of the BPC 157 Peptide—Literature and Patent Review. Pharmaceuticals (Basel). 2025;18(2):185. PMID: 40005999. PMID 40005999research article
2022BPC-157Vukojevic J, Milavic M, Perovic D, et al. Pentadecapeptide BPC 157 and the central nervous system. Neural Regen Res. 2022;17(3):482-487. PMID: 34380875. PMID 34380875research article
2023TB-500Sosne G, Kim C, Kleinman HK. 0.1% RGN-259 (Thymosin β4) Ophthalmic Solution Promotes Healing and Improves Comfort in Neurotrophic Keratopathy Patients in a Randomized, Placebo-Controlled, Double-Masked Phase III Clinical Trial. Int J Mol Sci. 2023;24(1):554.human trial, Phase 3
2015TB-500Sosne G, Dunn SP, Kim C. Thymosin β4 significantly improves signs and symptoms of severe dry eye in a Phase 2 randomized trial. Cornea. 2015;34(5):491-496.human trial, Phase 2
TB-500ClinicalTrials.gov. A Phase 2 Study on Effect of Thymosin Beta 4 on Wound Healing. NCT00311766.human trial, Phase 2
2010TB-500Ruff D, Crockford D, Girardi G, Zhang Y. A randomized, placebo-controlled, single and multiple dose study of intravenous thymosin beta4 in healthy volunteers. Ann N Y Acad Sci. 2010;1194:223-229.human trial
1981TB-500Low TL, Hu SK, Goldstein AL. Complete amino acid sequence of bovine thymosin beta 4: a thymic hormone that induces terminal deoxynucleotidyl transferase activity in thymocyte populations. Proc Natl Acad Sci U S A. 1981;78(2):1162-1166. PMID: 6940133. (Discovery publication.) PMID 6940133mechanism / discovery
2025TB-500WADA. 2025 Prohibited List. Section S2 — Peptide hormones, growth factors, related substances and mimetics. World Anti-Doping Agency. Thymosin β4 and derivatives prohibited since 2011.regulatory / registry
2025TB-500FDA. Bulk Drug Substances That Raise Significant Safety Risks (Category 2) under Section 503A / 503B. FDA.gov. Updated 2025.regulatory / registry
2015TB-500Sosne G, Kleinman HK. Primary Mechanisms of Thymosin β4 Repair Activity in Dry Eye Disorders and Other Tissue Injuries. Invest Ophthalmol Vis Sci. 2015;56(9):5110-5117. PMID: 26241398. PMID 26241398research article
2012TB-500Goldstein AL, Hannappel E, Sosne G, Kleinman HK. Thymosin β4: a multi-functional regenerative peptide. Basic properties and clinical applications. Expert Opin Biol Ther. 2012;12(1):37-51. PMID: 22074294. PMID 22074294research article
2011TB-500Smart N, Bollini S, Dubé KN, Vieira JM, Zhou B, Davidson S, Yellon D, Riegler J, Price AN, Lythgoe MF, Pu WT, Riley PR. De novo cardiomyocytes from within the activated adult heart after injury. Nature. 2011;474(7353):640-644. PMID: 21654746. PMID 21654746research article
2010TB-500Sosne G, Qiu P, Goldstein AL, Wheater M. Biological activities of thymosin beta4 defined by active sites in short peptide sequences. FASEB J. 2010;24(7):2144-2151. PMID: 20179146. PMID 20179146research article
2010TB-500Crockford D, Turjman N, Allan C, Angel J. Thymosin beta4: structure, function, and biological properties supporting current and future clinical applications. Ann N Y Acad Sci. 2010;1194:179-189. PMID: 20536465. PMID 20536465research article

Related pair pages

More research context

Frequently asked

Have BPC-157 and TB-500 been studied together?

Researchers have published mechanistic-level co-administration discussion of BPC-157 and TB-500. No human co-administration trials are catalogued in the Kalios profiles. The pair page lists each compound's classified literature; full citations sit on each individual profile.

What mechanisms do BPC-157 and TB-500 share?

BPC-157 and TB-500 do not share a specific mechanism tag on their Kalios profiles. They appear on the same pair page because at least one profile lists the other in its co-administration data.

What is the FDA status of BPC-157 and TB-500?

BPC-157: Category 2 (reclassification pending). TB-500: Category 2; RGN-259 Phase 3. FDA-status text is pulled verbatim from each compound profile. See /fda-pcac-2026.html for the broader FDA Pharmacy Compounding Advisory Committee context.

Where can I find the full research on BPC-157 and TB-500?

Full citation lists, dosing tables from the literature, reconstitution data, and the FDA / WADA status are on the individual compound profiles: the BPC-157 profile and the TB-500 profile. The Kalios Stack Research Tool hub lists every compound covered.

Last updated: April 2026