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Pyridine dinucleotide coenzyme (compounded injectable) · safety
NAD+ side effects
The nad+ side effects reported most often are moderate to severe stomach and gut symptoms during the infusion, raised heart rate during the infusion and chest pressure during the infusion. The full list is below, with the cited trial report cited at the bottom of the page.
The sources describe these effects in relation to the dose and to the early weeks.
NAD+ is a substance every cell uses to turn food into energy and carry out repair work. It is a coenzyme, not a peptide. Clinics promote NAD+ IV drips and injections for energy, focus, recovery, hangovers, addiction recovery and healthy aging.
The human studies on NAD+ itself are small and used IV infusions. They have not shown that NAD+ injections improve those goals. The clearest finding so far is discomfort during the drip, including stomach symptoms, a faster heartbeat and chest pressure.
At a glance
Common reactions listed
4
Serious reactions listed
0
Boxed warning
No label exists
Strongest source
limited human data
Common reactions
The full list, as reported across the available trial evidence. There is no approved label to read frequency bands off, so these are the trials’ own figures.
| Reaction | Frequency |
|---|---|
| Moderate to severe stomach and gut symptoms during the infusion | Reported in the NAD+ arm at 500 mg daily; resolved when the infusion finished |
| Raised heart rate during the infusion | Reported in the NAD+ arm at 500 mg daily; resolved when the infusion finished |
| Chest pressure during the infusion | Reported in the NAD+ arm at 500 mg daily; resolved when the infusion finished |
| Infusion having to be slowed because people could not handle the original speed | NAD+ infusions averaged 97 minutes against 37 minutes for the same dose of nicotinamide riboside |
When to seek medical care
The trial report does not give a separate list of serious reactions. There is also no approved label. That gap does not mean serious reactions cannot happen. This compound has been studied in fewer people and for less time than an approved drug.
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When these effects tend to occur
The cited evidence describes these effects in relation to the dose and to the early period of taking it, rather than as a constant background throughout.
When a study reports how side effects changed over time, it describes the group as a whole. It cannot predict one person’s experience.
Common questions
How long do nad+ side effects last, and do they go away?
The sources do not commit to a set number of days. What they describe is a pattern — reactions cluster after you start and after each increase, then ease while the dose is held steady. Any page quoting an exact number of days is quoting something the sources do not say.
What are the most common nad+ side effects?
Moderate to severe stomach and gut symptoms during the infusion, raised heart rate during the infusion, chest pressure during the infusion and infusion having to be slowed because people could not handle the original speed — the table above has the rest, each with its frequency band and source.
Does nad+ have a boxed warning?
No, because a boxed warning is part of an FDA-approved label and nad+ has no approved label. That reflects what regulatory review has and has not covered, not a finding that serious risks were looked for and ruled out.
Can the nad+ dose be lowered if side effects are hard to tolerate?
That decision belongs to the prescribing clinician. No approved schedule exists for this compound, so there is no labeled framework for adjusting a dose. That leaves the prescriber as the only place the decision can sit.
Does nad+ cause hair loss?
Hair loss is not among the reactions listed on this page for nad+, because the cited trial report cited here does not carry it. Anything missing from the tables is outside what can be sourced here rather than ruled out, and a symptom that worries you belongs with a clinician.
Is fatigue a listed nad+ side effect?
No — the cited trial report cited here does not list it. That describes what was reported, not proof that the symptom cannot happen.
Is constipation a listed nad+ side effect?
Not separately. If a source groups stomach and gut events together, this page keeps that group intact. It does not invent named reactions the source never listed.
What should someone do about a serious nad+ reaction?
Contact a clinician promptly, and emergency services if symptoms are severe or getting worse quickly. The available sources do not list any reactions as separately serious. That means there is no early-warning list here—not that serious reactions are impossible.
Do the frequencies on this page mean the chance it happens to one person?
No. These figures describe groups in a study. A band shows how often a reaction appeared under that trial’s conditions. It cannot predict what will happen to one person.
Related
The schedule these reactions were recorded against, the comparisons, and the sourcing rules behind every grade on this page.