There’s some solid advice here, but we need to look at the half-lives to really nail the protocol.
Running BPC-157 EOD (Every Other Day) like
@reiaver suggested is sub-optimal. BPC has a very short half-life in systemic circulation. If you want to keep the gastric and systemic healing pathways saturated, you really need at least once-daily pins (ED), though 250mcg twice daily (AM/PM) is the gold standard to maintain stable serum levels.
TB-500 is a different beast. It's systemic, so you don't need to pin it near the injury, but EOD is actually overkill for most. The 2-5mg weekly split into two doses is usually enough due to its longer acetylation cycle in the tissue.
@ceo makes a great point about running them separately to gauge response, but for chronic back pain—which is often a mix of disc inflammation and muscular compensation—the synergy is too good to pass up. BPC handles the acute angiogenic response (new blood vessel growth) while TB-500 manages the actin-sequestering pathway for tissue flexibility.
If I were in your shoes:
BPC-157: 250mcg BID (Twice a day) ED.
TB-500: 2.5mg twice a week (Monday/Thursday).
Duration: Listen to
@2thick 12 weeks is the sweet spot. Collagen synthesis doesn't happen overnight.
Just make sure you're getting high-purity lyophilized powder. A lot of the "pre-mixed" vials on the market degrade fast if they aren't stabilized with the right buffer.