Nicotinamide Riboside (NR) dosage

Nicotinamide Riboside (NR) oral dosage

A documented oral nicotinamide riboside regimen uses 300 mg once daily for 56 days. This amount is specific to NR rather than direct NAD+ or NMN.[1][2][3][4][5][10]

Nicotinamide riboside is a vitamin B3-related precursor used in NAD+ synthesis. Oral NR may support NAD-related biomarker levels.[1][2][3]

Nicotinamide Riboside (NR) injectable dosage

Subcutaneous Niagen Plus schedules use 50 or 100 mg once daily on days 1–3, then the same amount on Monday, Wednesday and Friday from day 10 through day 100. Intramuscular schedules use 50 or 100 mg once daily on days 1–3, with no further injections; later visits are follow-up only.[4]

An NR-chloride vial is a distinct formulation of a NAD+ precursor. Concentration, preparation and administration details must match that exact presentation.[4][5][10][1][2][3]

Frequency and timing

Oral NR is taken once daily. Subcutaneous Niagen Plus schedules use daily administration on days 1–3, then Monday, Wednesday and Friday from day 10 through day 100. Intramuscular schedules end after the three daily administrations on days 1–3.[1][2][3][4][5][10]

Cycle length and breaks

Oral: 56 days. Injectable: 3 days (intramuscular); through day 100 (subcutaneous). A standard break interval between courses is not established.[1][2][3][4][5][10]

Approval and product quality

Nicotinamide Riboside (NR) is not an FDA-approved drug.[7]

Side effects and long-term safety

Oral NR has generally been tolerated in short-term human use without a consistent increase in serious adverse events. Multi-year use, pregnancy, pediatric use and injectable safety remain incompletely characterized.[8][9][4][1][2][6][7]

Route-specific dosing limits

Oral NR evidence and the investigational injectable NR-chloride protocol should be interpreted separately.[1][4][7]