Who this guide is for
This guide is for men who have booked, or are thinking about booking, their first NAD+ drip and want to know how the appointment really feels. It covers why the session takes so long, which sensations during the drip are expected and which are a reason to slow down, and how NAD+ injections compare if a long chair session does not suit your week.
It assumes you have already had a vitamin or hydration IV, or read about one. If you have not, our guide to your first IV therapy session explains the basics of placing the line, which work the same way here. Some health conditions make any IV a poor idea, and the page on who should not get IV therapy lists the main ones.
A word on expectations: NAD+ is a coenzyme your cells use to turn food into energy, and interest in infusing it has grown far faster than the research. The human studies so far are small and mostly measure tolerability, not benefit. A good first session is one you tolerate well and understand, not one that promises a particular result.
Why does an NAD+ drip run so slowly?
Because speed, more than the bag itself, seems to decide how you feel during it. A vitamin or hydration drip at our clinics typically runs about an hour. An NAD+ drip of a similar volume usually takes longer, and for a first session it is sensible to block out two hours or more.
Two small studies show why. In a 2026 records review from a commercial clinic, six people received 500 mg of NAD+ diluted in 500 mL of saline on four consecutive days and controlled their own drip rate by tolerance. Their infusions averaged 97 minutes, with a spread of about 56 minutes either way, while the comparison compound, nicotinamide riboside, averaged 37 minutes. Every NAD+ recipient reported effects such as abdominal cramping, nausea, a faster heart rate, throat discomfort and chest pressure, and the authors noted those effects stopped as soon as each infusion ended.
An earlier 2019 pilot study went much slower. Eight healthy men aged 30 to 55 received 750 mg over six hours, roughly 2 mg a minute, and the researchers observed no adverse events during the infusion.
Neither study was large, and the 2026 authors called their work preliminary. Read together, though, they point the same way: NAD+ is tolerated when it goes in slowly and causes distress when it goes in fast. That is why the rate is adjusted to you rather than set by the clock.
Your first infusion, step by step
Before you arrive
- Clear the afternoon. Book a time when running long will not stress you, and do not schedule a meeting right after.
- Eat a light, normal meal an hour or two beforehand and drink water through the morning.
- Wear layers and a loose sleeve. Saline at room temperature can leave you cool, and the nurse needs easy access to your forearm or hand.
- Bring something calm to do, such as a book, podcast or noise-cancelling headphones.
- Bring your medicine and supplement list, including anything with niacin or other B vitamins.
- Skip heavy caffeine and alcohol the day before, since both can make a racing heart or queasiness harder to read.
At the clinic
- Review. A provider confirms your health history, medicines and goals, and checks that an IV is appropriate for you today. California’s Board of Pharmacy treats IV hydration as a medical treatment that needs an examination by an authorized provider first, and NAD+ drips deserve at least the same care.
- Vital signs. Blood pressure and heart rate are recorded so changes during the drip can be compared against your baseline.
- Line placement. A thin plastic catheter goes into a vein in your forearm or hand. The needle is removed and only the soft tube stays in.
- A slow start. The drip begins at a low rate. This is deliberate, and it is the part people most often want to rush.
- Check-ins. The nurse asks how you feel at intervals and adjusts the rate. Your job is to answer honestly, early and often.
- Finishing. When the bag is empty, the catheter comes out and a small bandage goes on. Most people sit for a few minutes before leaving.
Chest pressure, nausea and other signals to slow the drip
The sensations people describe during NAD+ drips are mostly predictable, and most of them are rate signals rather than emergencies. Say something the moment you notice one. Waiting to “push through” only makes the rest of the session harder.
| What you feel | What it usually means | What happens next |
|---|---|---|
| Tightness or pressure across the chest | The drip is running faster than you tolerate | The nurse slows or pauses it; it should ease within minutes |
| Nausea, stomach cramping, urge to use the bathroom | Common with faster rates | Slow the rate, take a bathroom break with the bag |
| Flushing, warmth, a racing heart | Often rate-related | Rate is reduced and vital signs rechecked |
| Throat tightness or a scratchy, congested feeling | Reported in the 2026 study | Rate is reduced; the nurse checks for any sign of allergy |
| Pain, burning or swelling at the IV site | The catheter may have moved out of the vein | The line is stopped and checked or replaced |
What does not belong on that list: chest pain that keeps going after the drip is paused, trouble breathing, swelling of the lips or tongue, hives, or fainting. Those stop the infusion entirely and are handled as a medical problem, not a speed adjustment.
How NAD+ injections differ from a drip
Injections trade the long chair session for a small dose given in minutes. Where a drip delivers a larger amount over an hour or more, an injection delivers a much smaller amount under the skin or into a muscle, often on a more frequent schedule.
| NAD+ drip | NAD+ injection | |
|---|---|---|
| Time in the clinic | An hour to several hours | Minutes |
| Dose per session | Larger | Smaller |
| How speed is controlled | The nurse adjusts the drip rate | Pushed slowly by hand over a short time |
| Common complaints | Chest pressure, nausea, cramping if run fast | Stinging or soreness at the injection site |
| Where | In the clinic, monitored | Shown in the clinic first, then often at home |
The research gap is wider for injections than for drips. A registered trial comparing injected NAD+ with injected nicotinamide riboside by under-the-skin, muscle and IV push routes was still recruiting with no results posted when this page was updated. Until data like that exist, choosing between the two comes down to your schedule, how you tolerated a drip and what your provider thinks fits your goals. Our comparison of vitamin IVs and NAD+ IVs covers the wider differences between infusion types.
After the drip, and when to call
Most people head back to their day. It is common to feel tired, mildly queasy or a little washed out for a few hours, and some people feel more alert. A small bruise where the line was placed is normal.
Call the clinic at 626-319-5261 if you notice:
- Redness, warmth, a hard cord along the vein or swelling at the IV site that grows over the next day or two
- Nausea, vomiting or diarrhea that is still going hours after the drip ended
- A rash or itching that appears after you get home
- Headaches or palpitations that keep returning in the following days
Call 911 for:
- Chest pain or pressure that does not settle, especially with sweating or pain spreading to the arm or jaw
- Trouble breathing, or swelling of the face, lips or throat
- Fainting, confusion, or sudden weakness on one side of the body
These are not reasons to call the clinic first. Get emergency care, then let us know afterward.
How Ultimate Male plans a first NAD+ session
At our San Gabriel and Downey clinics, NAD+ sits on the NAD+ therapy menu alongside our other peptides, so it starts the same way: a free 10-minute phone call, then labs and a one-on-one consultation with a PA-C or MD before anything is infused. Depending on your history, the provider may want specific markers first; our page on blood work before IV therapy explains when that makes sense.
What your plan looks like depends on things only that conversation can settle: whether a drip or injections fit your goals and schedule, the dose your provider recommends, how your first session is paced and whether any follow-up sessions make sense at all. If you start on injections, the first one is shown to you in the clinic, and every peptide plan includes a check-in with follow-up labs at six to eight weeks. Ultimate Male is direct-pay and quotes the plan before you book; the NAD+ IV cost page explains what drives the price. When you are ready, book a visit.
