There are zero randomized clinical trials on BPC 157. Zero. Here's what we actually know: it was isolated from stomach acid because researchers noticed those cells regenerate constantly in a harsh environment. Does BPC 157 Cause Erectile Dysfunction? Evidence and Safe Treatments Bolt Pharmacy Phosphodiesterase type 5 (PDE5) inhibitors are medications used to treat erectile dysfunction (ED) and pulmonary hypertension. They include sildenafil, vardenafil, tadalafil, and avanafil. These medications inhibit the PDE5 enzyme in endothelial cells, The Peptide Boom Is Getting Out of Hand The Atlantic BPC 157 Peptide Erectile Dysfunction: Exploring the Research and Real World Use What is BPC 157? Everything to know about this peptide