10.1016/j.jmb.2021.167180
Synthetic peptides can carry synthesis-related impurities, endotoxin, or incorrect sequences, and none of this is quality-controlled to pharmaceutical standards in research-grade material
All of these have a metal in them called nickel, which is a very common trigger
Colchicine, Neomycin, Aminosalicylic Acid, H2-blockers (e.g., Ranitidine), and Proton Pump Inhibitors (PPIs, e.g., Omeprazole): These oral medications can all interfere with the intestinal absorption of dietary B12, making the need for injectable B12 more pronounced
The IM approach allows for quicker absorption into the bloodstream and is a great alternative to those on-the-go folks who dont have as much time for IV drip therapy in the Quintessa wellness center lounge