Here are some possible side effects to keep in mind: You might feel some mild pain or see redness where you got the shot, but it usually goes away quickly Some people feel a bit dizzy right after the injection You might get some itching or a rash if you're sensitive Allergic reactions are rare, but if you have one, get medical help right away Some medications might not play nice with B12 shots, so tell your doctor about all your meds You might get a headache or feel a bit nauseous, but it's usually mild and short-lived In very rare cases, high doses might cause acne-like skin issues Your body usually gets rid of extra B12, but super-high doses could stress your liver Who Should Consider B12 Shots for Weight Loss
I still get the occasional numbness with stinging and burning in my legs
weight loss (Phase 2/3 peak) | ~15% | ~22% | ~24% | | FDA Status | Approved (Wegovy, Ozempic) | Approved (Zepbound, Mounjaro) | Phase 3 (2026) | | Dosing frequency | Weekly | Weekly | Weekly | The additional glucagon receptor agonism is believed to be responsible for retatrutide's greater metabolic rate increase and enhanced fat oxidation compared to dual agonists
In laboratory settings, Cagrilintide (CAGRI) is explored for amylin-receptor signaling, food-intake regulation, post-meal glucose response, and combination models
It has been extensively studied for its tissue-healing, anti-inflammatory, and cytoprotective properties across over 100 published research papers
Published steady-state exposure puts 14 mg oral daily closer to a 0.5 mg weekly injection, and even 25 mg oral daily lands near a 0.9 mg weekly injection short of Wegovy 2.4 mg. Switching routes is an exposure change, not a brand swap
