6,894,040 (disclosing administering a xanthine phosphodiesterase V inhibitor as "combination therapy" with any of a long list of agents including a melanocortin receptor agonist)
Barone BB, Yeh HC, Snyder CF, Peairs KS, Stein KB, Derr RL, et al
TB500 (molecular weight: 889.0 g/mol) is a short peptide fragment derived from thymosin beta-4, a protein involved in cell migration and angiogenesis (new blood vessel formation) in experimental systems
Unlike conventional treatments that merely manage symptoms, peptides work at a deeper level to restore balance and promote long-term wellness
Further randomized controlled trials are necessary
Start with the pattern