What Is NAD+ and Why Does It Matter?
Nicotinamide adenine dinucleotide (NAD+) is a coenzyme found in every living cell. It plays a central role in over 500 enzymatic reactions in the body, with its most critical functions being cellular energy production (ATP synthesis in the mitochondria), DNA repair, regulation of circadian rhythms, and activation of sirtuins, a family of proteins that regulate ageing and longevity. Without adequate NAD+, cells cannot produce energy efficiently, DNA damage accumulates, and the biological processes that keep us young begin to falter.
The challenge is that NAD+ levels decline significantly with age. NAD+ levels are widely reported to decline with age, and the figure usually quoted is that a fifty-year-old has roughly half the NAD+ of a twenty-year-old. That specific number is repeated far more often than it is sourced, and it rests on small tissue-sampling studies rather than any large population measurement. The direction of the decline is well supported; the exact ratio should be treated as an approximation. This decline is accelerated by chronic stress, poor sleep, excessive alcohol consumption, and sedentary lifestyles. The reduction in NAD+ is now considered one of the key drivers of the ageing process, contributing to fatigue, cognitive decline, reduced physical performance, and increased susceptibility to age-related diseases.
NAD+ IV drip therapy aims to restore cellular NAD+ levels by delivering the molecule directly into the bloodstream, bypassing the digestive system for near-complete bioavailability. While oral NAD+ precursors such as NMN (nicotinamide mononucleotide) and NR (nicotinamide riboside) are available as supplements, IV delivery achieves much higher intracellular concentrations in a shorter timeframe, making it the preferred method for many longevity clinicians and their patients.
What to Expect During an NAD+ IV Session in Ireland
An NAD+ IV session in Ireland typically begins with a brief health assessment and, for first-time patients, a review of recent blood work. You will be seated in a comfortable recliner chair in a clinical setting, and a qualified nurse or doctor will insert a small cannula into a vein in your arm. The NAD+ solution, usually dissolved in saline, is then infused slowly over a period of two to four hours, depending on the dosage.
The infusion rate matters significantly with NAD+. Unlike standard vitamin drips, NAD+ can cause uncomfortable side effects if infused too quickly, including chest tightness, abdominal cramping, nausea, and a feeling of pressure in the head. Experienced clinics manage this by starting with a slower drip rate and gradually increasing it based on your tolerance. Most patients find a comfortable pace within the first 20 to 30 minutes. During the session, you can read, work on a laptop, watch content on your phone, or simply rest.
Dosages at Irish clinics typically range from 250mg for a maintenance infusion to 500mg or 1000mg for more intensive protocols. First-time patients usually start with a lower dose. Many clinics recommend an initial loading phase of two to four sessions over one to two weeks, followed by monthly maintenance infusions. Some clinics also offer NAD+ combined with other nutrients such as glutathione, B vitamins, and amino acids for a comprehensive anti-ageing drip.
What Patients Report, and What the Trials Show
The most commonly reported benefits of NAD+ IV therapy among Irish patients include a noticeable increase in mental clarity and focus, improved sustained energy throughout the day, better sleep quality, and enhanced physical recovery after exercise. Many patients describe the effect as feeling several years younger, with a sharpness of mind and physical vitality that they had gradually lost over time. These subjective reports are consistent across clinics and are a major driver of repeat treatments.
From a research perspective, NAD+ therapy targets several of the hallmarks of ageing. Animal studies have demonstrated that restoring NAD+ levels can improve mitochondrial function, activate sirtuin-mediated DNA repair pathways, reduce neuroinflammation, and extend lifespan in model organisms. It is worth separating two things that often get merged. Human trials of oral NAD+ precursors, nicotinamide riboside and nicotinamide mononucleotide, do reliably raise NAD+ levels in blood. What those trials have mostly failed to show is a benefit downstream of that. Two studies using the gold-standard insulin clamp method, one in obese men and one crossover trial with muscle biopsies, both found no improvement in insulin sensitivity, mitochondrial function or blood pressure, and a 2024 meta-analysis of eight randomised trials found no significant benefit on glucose or lipid measures. One positive trial exists, in prediabetic postmenopausal women. Separately, none of this evidence is about intravenous NAD+, which has no efficacy trials of its own for any longevity outcome. The one human pharmacokinetic study of an NAD+ infusion found the molecule undetectable in plasma for the first two hours, which the authors attributed to it being broken down outside cells rather than taken up intact.
One thing to know before booking: NAD+ infusions are frequently uncomfortable, and the discomfort is dose-rate dependent. In the only published real-world tolerability series, every one of the six people who received intravenous NAD+ reported moderate to severe symptoms during the infusion, including abdominal cramping, diarrhoea, nausea, vomiting, raised heart rate, throat pain and chest pressure. Symptoms resolved when the infusion was slowed or stopped, and the clinic had to extend a 500 mg infusion to an average of roughly 97 minutes to keep it tolerable. No serious adverse events were recorded over thirty days, and there are no long-term safety data for repeated courses. NAD+ for infusion is not an authorised medicine in Ireland, so sterility, concentration and purity depend entirely on the compounding pharmacy that prepared it.
It is worth noting that the research on IV NAD+ specifically, as opposed to oral precursors, is more limited. Most large-scale human trials have used NMN or NR supplements rather than direct IV NAD+ infusion. However, the pharmacological rationale for IV delivery is strong, given the superior bioavailability, and clinical experience across thousands of patients worldwide supports its efficacy. Irish practitioners who offer NAD+ therapy typically monitor patient outcomes through blood work and biomarker tracking to objectively measure the impact.
NAD+ IV Therapy Costs in Ireland
NAD+ IV therapy is one of the more premium longevity treatments available in Ireland, reflecting the cost of the pharmaceutical-grade NAD+ compound itself and the extended infusion time required. Single-session pricing across Irish clinics typically ranges from 250 euro for a 250mg infusion to 600 to 800 euro for a 1000mg dose. Some clinics in Dublin and Belfast charge at the higher end of this range, while clinics outside major cities may offer more competitive pricing.
Many clinics offer package deals that reduce the per-session cost significantly. A common offering is a loading package of four sessions over two weeks for 800 to 1,200 euro, followed by monthly maintenance sessions at a discounted rate. Some clinics also offer NAD+ as part of comprehensive longevity programmes that include blood work, functional medicine consultations, and other IV therapies, providing better overall value for patients committed to a long-term protocol.
When comparing prices, check what is included in the quoted fee. Some clinics include the initial consultation and blood work in their NAD+ package price, while others charge these separately. Ask about the specific dosage, the source and pharmaceutical grade of the NAD+ used, and whether the infusion is administered by a doctor or nurse. Mobile NAD+ services, where a nurse comes to your home or office, are also available from several Irish providers, typically at a premium of 50 to 100 euro over in-clinic pricing.
Who Should Consider NAD+ Therapy?
NAD+ IV therapy is sought by a broad range of patients in Ireland. Professionals in high-stress, high-performance roles use it to maintain cognitive sharpness and sustained energy without relying on caffeine or stimulants. Athletes and fitness enthusiasts incorporate it into their recovery protocols to reduce muscle soreness and accelerate adaptation to training. Individuals over 40 who are noticing age-related declines in energy, memory, or physical performance are a growing demographic, using NAD+ as part of a preventative longevity strategy.
NAD+ therapy has also attracted interest from people recovering from certain health challenges. Some clinics offer NAD+ protocols for patients recovering from Long Covid, chronic fatigue syndrome, and neurological conditions, based on the rationale that restoring cellular energy production can support recovery. While the evidence for these specific applications is still emerging, patient testimonials and clinical observations have been encouraging.
NAD+ is generally well-tolerated, but it is not suitable for everyone. Pregnant or breastfeeding women, people with certain cancers, and those on specific medications should consult their doctor before starting treatment. A reputable Irish clinic will always conduct a thorough health screening before administering NAD+, and will adjust the dosage and infusion rate based on your individual response. If you are considering NAD+ for the first time, starting with a consultation at a clinic that offers comprehensive blood work will help determine whether it is the right treatment for your needs.
A Note on These Prices
Prices last checked: August 2026. The figures on this page are ranges gathered from clinic pricing published across Ireland, not quotes, and they move. Confirm current cost with the clinic directly before booking. Where a substance has no marketing authorisation in Ireland or the EU we do not publish a price for it, because advertising an unauthorised medicine to the public is prohibited under Irish medicines law.
