The first injection on the new compound may produce mild differences in side effect profile because of vehicle differences between manufacturers, but these typically settle within 1 to 2 weeks
Ongoing frequency should be based on your providers guidance
NOC billing requires the drug name, strength, dosage administered, and manufacturer to appear in the claim narrative or CMS-1500 Box 19
The core titration requires 60mg regardless of how long you spend at maintenance, so your first three 20mg vials cover the escalation phases with room to spare
114, July 2020, p
Importantly, if you have unexpectedly high B12 levels without taking supplements or receiving injections, this warrants GP review as it may indicate underlying liver disease, kidney disease, or certain blood disorders