Safety Profile

NAD+ Side Effects & Safety

NAD+ precursors (NR, NMN) have favorable safety profiles from pilot human trials. Direct IV NAD+ infusions have more variable side effects.

Educational content only. This page is compiled from published research for reference and is not medical advice, diagnosis, or treatment. Readers should verify claims against primary sources and consult a qualified healthcare provider before making any health decisions. Full disclaimer.

Side effects by severity

Common2 effects

Injection site reactions (SC/IV)

Can be significant with IV; flushing and discomfort.

Flushing

Common with nicotinamide precursors.

Uncommon3 effects

Nausea

Particularly with high doses.

Headache

Reported in trials.

Fatigue

Paradoxical; reported in some users.

Rare1 effect

Liver enzyme elevation

High-dose nicotinamide can elevate liver enzymes.

Contraindications

Known hypersensitivity
Severe liver disease
Pregnancy (precautionary)

Drug interactions

Limited significant clinical interactions
Nicotinamide at high doses may interact with chemotherapy agents

Special populations

Precursors (NR, NMN) have favorable safety in elderly trials. IV NAD+ less well-characterized.

Safety summary

NAD+ precursors have a favorable safety profile in pilot studies. IV NAD+ infusions can cause more substantial transient side effects (flushing, nausea) during administration but resolve upon completion.

Frequently asked

Is IV NAD+ safe?

Short-term IV NAD+ appears safe in pilot studies. Infusions can cause uncomfortable side effects (flushing, nausea) during administration. Long-term safety is not well established.