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NAD+ Dosing Guide
Evidence-based dosing protocols across 3 administration approaches.
Medical Disclaimer
This dosing information is for educational reference only. Dosing decisions require physician oversight. Do not self-prescribe or adjust dosing without consulting a qualified healthcare provider.
Dosing Protocols
IV Infusion
Off-Label ClinicIntravenousDose Range
250–750 mg
Frequency
variable
Source
PMC7558103; PMC6751327
Loading: 250-500 mg daily × 3-5 days. Maintenance: monthly. 6-hour infusion typical. Slow rate to reduce flushing/nausea.
Subcutaneous Injection
Off-Label ClinicSubcutaneousDose Range
50–200 mg
Frequency
weekly
Start 50 mg/wk, increase to 100 mg/wk if tolerated. More practical than IV for home use.
Oral Precursors (NMN)
Off-LabelOralDose Range
250–1250 mg
Frequency
daily
NMN or NR. Sublingual may improve bioavailability. Up to 1200 mg/d tested without serious AEs.
Administration
Delivery methods
Intravenous infusionSubcutaneous injectionOral supplementNasal spray
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Pending physician review — consult your provider before use.Updated 2026-04-10