NAD+ injections are a form of NAD+ therapy in which nicotinamide adenine dinucleotide (NAD+) is delivered by injection rather than taken orally. Injectable delivery bypasses the digestive system entirely. Like other forms of prescription NAD+ therapy, injections are available only through a licensed healthcare provider, who evaluates whether the treatment is medically appropriate for the individual patient.

Interest in NAD+ therapy has grown alongside broader scientific interest in cellular health, metabolism, and aging. For people exploring their options, one common question is how NAD+ injections differ from oral supplements — and whether injections might be worth discussing with a provider.

Nicotinamide adenine dinucleotide (NAD+) is a coenzyme found in every cell of the body that plays a central role in energy metabolism, DNA repair, and cellular function.¹ NAD+ levels naturally decline with age, which has prompted interest in ways to support those levels. Injections are one approach that delivers NAD+ subcutaneously (under the skin) or intramuscularly, bypassing the digestive tract entirely.

Discover what NAD+ injections are, how they differ from other forms of NAD+ therapy, what the provider evaluation process involves, and what to consider before exploring injectable NAD+ care.

What are NAD+ injections?

NAD+ injections are a form of NAD+ therapy in which the coenzyme is delivered directly into the body via a subcutaneous (under the skin) or intramuscular injection, rather than consumed orally as a supplement.

When NAD+ or its precursors are taken orally, they pass through the digestive system before entering the bloodstream. Injections deliver the compound more directly, bypassing gastrointestinal processing entirely.

NAD+ injections for therapeutic purposes are different from over-the-counter (OTC) NAD+ supplements. OTC supplements are not drugs and are not evaluated by the Food and Drug Administration (FDA) for safety and effectiveness before they are marketed.² Prescription NAD+ therapy involves a licensed provider evaluating whether injectable treatment is medically appropriate for the individual patient.

How are NAD+ injections different from NAD+ supplements?

NAD+ is available in several forms, and understanding the differences helps clarify what injections offer compared to other options.

Oral supplements

Oral NAD+ supplements typically contain NAD+ precursors — compounds the body uses to produce NAD+ — such as nicotinamide riboside (NR) or nicotinamide mononucleotide (NMN). These supplements are widely available over the counter and do not require a prescription. They are not FDA-approved and have not been evaluated by the FDA for safety or efficacy.²

NAD+ injections

Injectable NAD+ is administered subcutaneously or intramuscularly and bypasses the digestive system. Prescription NAD+ injections are compounded medications — they are prepared by a state-licensed compounding pharmacy or federally registered outsourcing facility based on a licensed provider’s prescription.

Compounded NAD+ injections are not FDA-approved and have not been evaluated by the FDA for safety, efficacy, or quality.³ They are not the same as OTC supplements, and they are not generics. A licensed provider determines whether injectable NAD+ is medically appropriate for the individual.

NAD+ IV therapy

Intravenous (IV) NAD+ therapy delivers NAD+ directly into the bloodstream and is typically administered in a clinical setting. IV sessions can take several hours and require on-site clinical supervision. Injectable subcutaneous NAD+ therapy, by contrast, can often be administered at home once the patient has been instructed by a provider.

How do NAD+ injections work?

NAD+ injections work by delivering NAD+ subcutaneously or intramuscularly, where it is absorbed into the body’s tissues and bloodstream. Once absorbed, it participates in the same biological processes as endogenous NAD+.

NAD+ plays several well-studied roles at the cellular level, including:¹

• Participating in metabolic pathways that generate ATP (the molecule cells use for energy)
• Supporting PARP enzymes, which are involved in detecting and repairing DNA damage
• Activating sirtuins, a family of proteins involved in cellular stress responses, metabolism, and gene regulation
• Contributing to mitochondrial function, which supports cellular energy production

NAD+ levels naturally decline with age, and scientific interest in NAD+ therapy centers on understanding what restoring or supporting those levels may mean for cellular biology over time.¹

Research is ongoing, and many of the potential applications being studied in preclinical and early clinical work have not yet been confirmed at scale in human trials.

What does the prescription process for NAD+ injections involve?

Prescription NAD+ injections require an evaluation by a licensed healthcare provider before they can be prescribed. Here is what the process typically involves.

1. Health evaluation

A licensed provider reviews the patient’s health history, current medications, and goals to determine whether prescription NAD+ therapy may be medically appropriate. This evaluation is required before any prescription can be issued.

2. Provider determination and prescription

If the provider determines that injectable NAD+ is appropriate, they issue a prescription specifying the compounded formulation, dose, and administration instructions. Payment does not guarantee that a prescription will be written or dispensed.

3. Pharmacy fulfillment

The prescription is sent to a state-licensed compounding pharmacy, which prepares the injectable NAD+ and may ship it directly to the patient. Administration instructions provided by the provider guide how and when to self-inject.

4. Ongoing monitoring

As with any prescription therapy, ongoing provider check-ins are part of responsible NAD+ injectable care. The provider monitors for any concerns and reassesses whether the treatment continues to be appropriate.

What are common side effects of NAD+ injections?

Side effects can occur with NAD+ injections and vary by person. Some commonly reported side effects include:

• Injection site reactions such as redness, soreness, or bruising
• Nausea, particularly during early treatment or at higher doses
• Fatigue or temporary brain fog, especially when beginning therapy
• Flushing or warmth at the injection site

A licensed provider can review your health history and potential risks before recommending any form of NAD+ therapy. Seek medical care for severe or concerning symptoms.

How LumiMeds Can Help

LumiMeds connects patients with licensed providers who can review their health history and treatment goals to determine whether prescription NAD+ injection therapy may be medically appropriate. If prescribed, compounded NAD+ medication may be fulfilled through state-licensed compounding pharmacies and shipped directly to you.

Start your online assessment to see if you may be a candidate for NAD+ injection care through LumiMeds.

Key Takeaways

• NAD+ injections deliver nicotinamide adenine dinucleotide subcutaneously or intramuscularly, bypassing the digestive system.
• Injectable NAD+ is a compounded prescription medication — it is not an OTC supplement and is not FDA-approved.
• The prescription process involves a licensed provider evaluation, a compounded formulation prepared by a state-licensed pharmacy, and ongoing monitoring.
• NAD+ plays established roles in cellular energy production, DNA repair, and sirtuin activation; research into the implications of supporting NAD+ levels through therapy is ongoing.
• Side effects can occur and vary by person. A licensed provider reviews individual health history before recommending injectable NAD+ care.

FAQs

Are NAD+ injections the same as NAD+ supplements?

No. Over-the-counter NAD+ supplements typically contain NAD+ precursors (such as NR or NMN) and are taken orally. NAD+ injections are compounded prescription medications delivered subcutaneously or intramuscularly. They require a licensed provider evaluation and prescription and are not available over the counter.

Do NAD+ injections require a prescription?

Prescription injectable NAD+ requires a licensed provider evaluation and a prescription before it can be dispensed. OTC NAD+ supplements do not require a prescription, but they are different products.

How often are NAD+ injections administered?

Dosing frequency and schedules for NAD+ injections vary by individual and are determined by the prescribing provider. Some protocols involve injections several times per week; others are less frequent. A licensed provider will establish the appropriate schedule based on the patient’s health profile.

Can you administer NAD+ injections at home?

Subcutaneous NAD+ injections are often designed for self-administration at home, once the patient has received instruction from a licensed provider. The provider will explain the administration process and provide guidance on safe self-injection technique.

What is the difference between NAD+ injections and NAD+ IV therapy?

NAD+ intravenous (IV) therapy delivers NAD+ directly into the bloodstream and is typically administered in a clinical setting, taking several hours per session. Subcutaneous NAD+ injections can often be self-administered at home and are a more convenient alternative for ongoing therapy. A licensed provider can discuss which approach may be appropriate.

Are NAD+ injections FDA-approved?

No. Compounded NAD+ injections are not FDA-approved. The FDA does not evaluate compounded medications for safety, efficacy, or quality before they are dispensed. A licensed provider determines whether injectable NAD+ is appropriate based on individual clinical evaluation.

Compounded medications are not FDA-approved and have not been evaluated for safety and effectiveness by the FDA. Compounded medications are not brand-name drugs nor are they considered “generics.” Compounded medications are prepared by state-licensed compounding pharmacies or federally registered outsourcing facilities.

Payment does not guarantee the writing or dispensing of a prescription. A licensed provider will determine whether treatment is medically appropriate based on individual health history and needs.

This information is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a licensed healthcare provider with any questions you may have regarding a medical condition or treatment.

Sources

1. Covarrubias, A. J., Perrone, R., Grozio, A., & Verdin, E. “NAD+ metabolism and its roles in cellular processes during ageing.” Nature Reviews Molecular Cell Biology. https://pmc.ncbi.nlm.nih.gov/articles/PMC12177089/
2. Food and Drug Administration. “Is It Really ‘FDA Approved’?” https://www.fda.gov/consumers/consumer-updates/it-really-fda-approved
3. Food and Drug Administration. “Compounding and the FDA: Questions and Answers.” https://www.fda.gov/drugs/human-drug-compounding/compounding-and-fda-questions-and-answers