Both TB4 and TB 500 are on the WADA Prohibited List and also banned by MLB, but it they are not yet on the NFL list
This is because the process is effective in eliminating water from the compound
BPC-157, a synthetic 15-amino acid peptide sometimes used to treat ulcerative colitis, and KPV, which is used for inflammatory conditions, were the first peptides considered on July 23 for addition to the 503A bulks list
doi:10.1111/1556-4029.15317
By the time policymakers debate how these substances should be classified, many have already achieved widespread adoption despite limited clinical evidence and incomplete understanding of their long-term safety profiles
Last reviewed: November 16, 2025 The timing of CDC-recommended vaccination is unaffected by the receipt of COVID-19 monoclonal antibodies or convalescent plasma