Only about 32.3% of patients remain on GLP-1 therapy after one year
B12 deficiency can take 3-6 months to correct with consistent supplementation, and neurological symptoms may take longer to resolve
Patients with high-sensitivity GLP1R variants benefit from even slower titration schedules or microdose protocols, while those with lower sensitivity may tolerate faster escalation
That bioavailability hurdle is why different delivery systems (liposomal, sustained-release, S-acetyl, sublingual) exist, and why choosing the right form matters as much as choosing the right brand
Many prior authorization requests are reviewed within several business days, although processing times vary by insurance company, plan, and the completeness of submitted documentation