Tesamorelin and CJC-1295 are both GHRH-receptor agonists, but tesamorelin is an FDA-approved drug with replicated Phase 3 trials while CJC-1295 is an unapproved research chemical with two small surrogate-marker studies
Rare but serious risks include pancreatitis, gallbladder disease, acute kidney injury (secondary to dehydration from GI effects), and a theoretical thyroid C-cell tumor risk based on rodent data that has not been confirmed in human post-marketing surveillance
It warrants monitoring, particularly if someone notices unusual muscle pain, weakness, or dark urine while on the medication
Mocan M, MocanHognogi LD, Anton FP, Chiorescu RM, Goidescu CM, Stoia MA, et al
Hydroxocobalamin provides a longer-acting effect compared with oral B12 supplements, which reduces the frequency of dosing
Many patients find that side effects peak in the first 12 weeks and gradually improve as the body adjusts, especially if the underlying gastritis remains stable