What is NAD+?
Nicotinamide adenine dinucleotide (NAD+) is a coenzyme found in every living cell. It helps convert food into energy in the mitochondria and is used by enzymes involved in DNA repair and cell signalling, including sirtuins and PARPs. Studies in animals and humans show that NAD+ levels in many tissues fall with age. That observation has made NAD+ a central focus of ageing research.
NAD+ can be raised by IV infusion, injection, or by taking precursors by mouth, such as nicotinamide riboside (NR) or nicotinamide mononucleotide (NMN).
How does NAD+ IV therapy work?
During an NAD+ IV, the coenzyme is diluted in a saline bag and given slowly through a vein. Blood levels rise during and shortly after the infusion. What is less clear is how much reaches the tissues, how long it stays raised, and whether this produces lasting health effects. NAD+ is also broken down quickly in the bloodstream into other compounds.
What does the evidence show?
| Claimed benefit | Evidence level | Notes |
|---|---|---|
| Raising blood NAD+ levels | Good (short-term) | IV and oral precursors both raise measured levels. |
| Energy and fatigue | Very limited | Mostly anecdotal or small uncontrolled reports. |
| Healthy ageing and longevity | Not shown in humans | Strong animal data; human trials of precursors show mixed, modest effects on markers. PubMed review |
| Muscle and metabolic health | Limited, mixed | Small trials of NR/NMN show some changes in markers, not consistent clinical outcomes. |
| Addiction withdrawal support | Very limited | Older case series only; not a substitute for addiction medicine. |
| Neurodegeneration | Research stage | Early trials of precursors in Parkinson’s disease are ongoing. |
The honest summary is that NAD+ biology is real and important, but large, high-quality trials showing that NAD+ infusions make people healthier or live longer do not yet exist. We present NAD+ as an optional part of a broader longevity program, not a stand-alone solution.
NAD+ IV vs oral precursors
| NAD+ IV | Oral NR or NMN | |
|---|---|---|
| How given | Slow drip over 2 to 4 hours | Capsules daily |
| Effect on blood NAD+ | Rapid rise during infusion | Gradual rise over days to weeks |
| Human trial data | Very few controlled trials | More small randomised trials, mostly on markers |
| Common side effects | Chest tightness, nausea, flushing if too fast | Generally mild digestive upset |
| Practicality | Requires clinic visit and IV line | Can be taken at home |
Neither approach has been shown to prevent disease or extend lifespan in humans. Some people choose IV for the faster rise in blood levels; others prefer the simplicity of oral precursors. A doctor can discuss which, if either, fits your situation and your other medications.
Questions to ask before any NAD+ drip
- What dose is being given, and over how long?
- Where does the product come from, and is it sterile and in date?
- Who is monitoring me during the infusion, and what happens if I react?
- Has a doctor reviewed my medical history and medications first?
- What benefit should I realistically expect, and how will we judge it?
A clinic that cannot answer these clearly is not one we would recommend.
Who may consider NAD+ IV?
- Healthy adults interested in an experimental longevity approach who understand the evidence gap.
- People already working on the foundations: sleep, exercise, nutrition, and managing blood pressure, glucose and cholesterol.
- Patients combining it with a health check in Bangkok so baseline blood tests are available.
Who should not have NAD+ IV?
- Pregnancy or breastfeeding (no safety data).
- Active cancer, unless your oncologist agrees, because the effect of NAD+ on tumour metabolism is not fully understood.
- Significant heart disease or uncontrolled high blood pressure, given the chest tightness and fluid load.
- Severe kidney or liver disease.
- Anyone unable to sit for a multi-hour infusion.
Side effects and risks
The most common side effects come from infusing too fast: chest pressure or tightness, nausea, abdominal cramping, flushing, headache and anxiety. These usually ease within minutes when the drip is slowed. Other risks are those of any IV line: bruising, vein irritation and, rarely, infection. Long-term effects of repeated high-dose courses are unknown.
Conventional foundations first
No infusion replaces the basics that have strong evidence for healthy ageing: regular physical activity including strength training, adequate sleep, not smoking, limiting alcohol, a mostly whole-food diet, and treating blood pressure, cholesterol and glucose when they are high. The NHS guide to healthy living summarises these well. A doctor-led longevity plan starts here.
Regulatory note
NAD+ is not an approved drug for any anti-ageing indication in the United States, Australia or the UK. In some countries it is supplied through compounding pharmacies. In Thailand, IV therapies are given under a doctor’s supervision in a licensed clinic. Ask about the source and sterility of any IV product before treatment.
NAD+ IV therapy in Bangkok: step by step
- WhatsApp consultation. Tell us your goals, medical history and current medications.
- Share recent blood tests or reports, or plan baseline tests in Bangkok. Our send your reports page explains what helps.
- Doctor review. A doctor decides whether NAD+ is appropriate and safe for you, and whether other steps should come first.
- Personalised program. Number of infusions, spacing, and any combination with other longevity elements, with a written quote.
- Infusion days. Vital signs checked, IV placed, slow infusion with nurse monitoring. Plan for a few hours per session.
- Follow-up. Advice on what to monitor at home and WhatsApp check-ins. See aftercare.
Safety and quality
IV products are prepared under sterile conditions and given by trained staff under the supervision of Thai Medical Council-licensed doctors. Where your program also includes cell-based therapy, cells are prepared in ISO 9001:2015-certified partner laboratories. We will not recommend NAD+ if your history suggests risk outweighs a speculative benefit.
Related pages
- Longevity program
- Peptide therapy: what is and is not approved
- Health check in Bangkok
- Patients with type 2 diabetes or COPD should discuss any IV therapy with their own doctor first.
Frequently asked questions
What does NAD+ IV therapy do?
It raises NAD+ levels in the blood for a period. NAD+ supports energy metabolism and repair enzymes in cells. Whether this translates into better energy, cognition or longevity in humans has not been clearly shown in large trials.
How long does an NAD+ drip take?
Usually two to four hours, because infusing too fast commonly causes chest tightness, nausea or flushing. The rate is adjusted to how you feel.
Are NAD+ injections better than supplements?
IV delivery bypasses digestion, but oral precursors such as nicotinamide riboside and NMN also raise blood NAD+ levels in studies. Neither route has proven long-term health benefits in humans yet.
How often should you get NAD+ IV?
There is no evidence-based schedule. Clinics use anything from a short course to occasional top-ups. Your doctor will recommend a plan, if any, after reviewing your health history and blood tests.
Is NAD+ IV safe?
Short-term side effects such as flushing, nausea and chest pressure are common but usually settle when the drip is slowed. Long-term safety of repeated high-dose infusions has not been well studied.
This page is general information, not medical advice, and does not replace a consultation with your own doctor. Results vary and no treatment outcome can be guaranteed. We are a patient coordination service and may receive a referral fee from partner medical providers. See our medical disclaimer and referral disclosure.