Once your levels are normal, you can switch to a B12 supplement
TIER 1 (40mg total) $370 total for 8-10 week supply Monthly cost breakdown: $148-$185 based on weekly dose Recommended if new to treatment or for those on 2-5mg/week TIER 2 (60mg total) $445 total for 8-10 week supply Monthly cost breakdown: $178-$220 based on weekly dose Recommended for those on 6-7mg/week TIER 3 (80mg total) $575 total for 8-10 week supply Monthly cost breakdown: $288-$292 based on weekly dose Recommended for those on 8-10mg/week TIER 4 (120mg total) $725 total for 8-10 week supply Monthly cost breakdown: $290-$363 based on weekly dose Recommended for those on 11mg/week and up South Lake Pharmacy - Tirzepatide/B12 Injection Up to 90 days BUD
For a deeper look at how researchers approach this problem, the discussion of peptide bioavailability in animal models covers the methodological considerations in useful detail
Pharmacokinetics: Data indicate a linear pharmacokinetic profile with a short half-life ( 1000mcg/day) have been anecdotally associated with increased chances of headaches, fatigue, or water retention, and may lead to diminishing returns, suggesting a bell-shaped dose-response curve

[Learn More in MedlinePlus] Code History FY 2026 - No Change, effective from 10/1/2025 through 9/30/2026 FY 2025 - No Change, effective from 10/1/2024 through 9/30/2025 FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024 FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023 FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022 FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021 FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020 FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019 FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018 FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017 FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
GHK-Cu - ,