Safety
NervoMax Side Effects: What to Watch For
NervoMax side effects come from its ingredients and are mostly mild, but a few need care.
Bacopa may upset the stomach, ginkgo may raise bleeding risk, and green tea extract has rare liver reports. Too much vitamin B6 can cause numbness and tingling.
Written by the NervoMax editorial teamUpdated
By ingredient
What are the side effects of NervoMax?
No study of NervoMax has tracked side effects, so the only guide is its nine ingredients. Most have known problems, usually at doses larger than a 600 mg blend could hold. The exception is vitamin B6, because its amount is unknown.
| Ingredient | Possible side effect | Who is most at risk |
|---|---|---|
| Bacopa | More frequent stools, nausea, cramps (StatPearls, Bacopa) | Sensitive stomachs |
| Ginkgo | May raise bleeding risk (NCCIH, Ginkgo) | People on blood thinners or facing surgery |
| Green tea extract | Rare liver injury, usually 1-6 months in (LiverTox, Green tea) | People with liver disease |
| Cinnamon (type not stated) | Cassia carries coumarin, a liver concern (NCCIH, Cinnamon) (BfR, Coumarin) | Liver disease, diabetes medicine |
| Himalayan pink salt | Adds sodium (FDA, Sodium) | Salt-restricted diets, heart failure |
| Bilberry leaf | Leaves may be unsafe in high doses or long-term (NCCIH, Bilberry) | Long-term users |
| Vitamin B6 | Numbness, tingling, unsteady walking in excess (NIH ODS, Vitamin B6) | Anyone taking other B6 products |
Lutein and vitamin B12 are generally well tolerated. The salt dose is small next to the 2,300 mg daily sodium limit, but it is still sodium.
The main concern
Can NervoMax cause numbness or tingling?
It could, if your total vitamin B6 gets too high. Excess B6 causes sensory peripheral neuropathy: numbness, tingling and burning in the hands and feet (NIH ODS, Vitamin B6). Those are the very symptoms NervoMax is sold for.
Harm is not limited to huge doses. Australia's TGA has seen cases below 50 mg a day (TGA, B6 alert 2022) and counted 250 reports by October 2025 (TGA, B6 update 2025). New Zealand found cases at lower doses taken for a long time (Medsafe, B6 2025). Dutch reports involved products with 1.4 to 100 mg per tablet (van Hunsel et al., 2018).
Vitamin B6 benchmarks come from the NIH fact sheet (NIH ODS, Vitamin B6) and Australia's TGA (TGA, B6 alert 2022). NervoMax does not print its B6 amount, so you cannot place it on the first chart. The second chart shows that three of the nine ingredients alone, at study doses, would need most of the whole blend.
The good news: B6 nerve symptoms usually improve after the B6 is stopped (Muhamad et al., 2023). The problem is spotting it. Someone whose tingling slowly worsens may take more of a nerve supplement, not less.
Protect yourself
How can you avoid too much vitamin B6?
Add up every product you take that lists B6, then ask the maker for the NervoMax figure. A blood test can show a high B6 level; one Australian lab study found high levels in about 39% of samples (Daley et al., 2023).
List your B6 sources
Multivitamins, B-complexes, magnesium tablets, sleep and stress formulas.
Ask for the number
Call +1 (302) 200-3480 and ask for the B6 amount per capsule.
Show your doctor
Bring the bottles and the figure. Ask whether a B6 blood test makes sense.
The full background is on the vitamin B6 page.
Medicines
Does NervoMax interact with medications?
Several ingredients can. Ask your doctor or pharmacist before you start if you take any medicine in the table.
| Medicine | Ingredient | Concern |
|---|---|---|
| Warfarin and other blood thinners | Ginkgo | Higher bleeding risk (NCCIH, Ginkgo) |
| Nadolol, atorvastatin | Green tea extract | Lower drug levels (NCCIH, Green tea) |
| Diabetes medicines | Cinnamon | Unclear blood-sugar effect; cassia coumarin (NCCIH, Cinnamon) |
| Metformin, PPIs, H2 blockers | Vitamin B12 | These drugs can lower B12; get a blood test (NIH ODS, Vitamin B12) |
| Blood pressure or heart failure drugs | Pink salt | Extra sodium (FDA, Sodium) |
Example: a 70-year-old on warfarin and atorvastatin has two possible problems in one capsule. That is a pharmacist conversation before the first dose.
Who should skip it
Who should not take NervoMax?
The label itself asks pregnant or nursing mothers, children under 18 and people with a known medical condition to consult a physician first. Several more groups should ask before starting.
- Anyone already taking B6 in another product
- People with liver disease or a past liver problem
- Anyone on blood thinners or due for surgery
- People on a low-sodium diet
- Anyone with unexplained numbness not yet checked by a doctor
NervoMax is a dietary supplement, not a drug. Ask your doctor first if you take blood thinners, diabetes medicine, metformin, acid reducers or heart medicine, already take a B-complex or other vitamin B6 product, have liver disease, or are pregnant or nursing. See side effects and cautions.
Urgent
When is numbness an emergency?
Call 911 if numbness comes with weakness, confusion, slurred speech, vision changes or loss of bladder or bowel control (MedlinePlus, Numbness). These can be signs of a stroke or spinal problem.
See a doctor soon for numbness that is new, spreading, one-sided, or follows an injury. With diabetes, check your feet daily (NIDDK, Foot care).
Reporting
How do you report a side effect from NervoMax?
Stop taking it, get medical care if needed, then report it to the FDA. Reports help regulators spot problems, because supplements are not approved before sale (FDA, Using supplements).
Keep the bottle
Note the lot number, expiry date and how many capsules you took each day.
Report to the FDA
Use the FDA Safety Reporting Portal or MedWatch online. You, a family member or your doctor can file it.
Tell the seller
Call the order desk at +1 (302) 200-3480 with your order ID.
Include what happened, when it started and every other product you were taking.
FAQ
NervoMax side effects FAQ
What are the side effects of NervoMax?
Possible side effects come from its ingredients: stomach upset from bacopa, bleeding risk from ginkgo, rare liver injury from green tea extract and nerve symptoms from too much vitamin B6. NervoMax itself has never been studied, so how often these happen is not known.
Can vitamin B6 in NervoMax cause nerve damage?
It can if your total B6 is too high. Excess B6 causes numbness and tingling, and cases have been reported below 50 mg a day. NervoMax does not print its B6 amount, so ask the maker and count your other B6 products.
Can I take NervoMax with a blood thinner?
Ask your doctor first. NervoMax contains ginkgo, which may raise bleeding risk with warfarin and other blood thinners. Stop it before surgery and tell your surgeon you were taking it.
Is NervoMax bad for your liver?
Liver injury from green tea extract is rare and mostly linked to concentrated capsules at higher doses. Cassia cinnamon also carries coumarin. If you have liver disease, ask your doctor first, and stop if you notice yellow skin or dark urine.
Can I take NervoMax with metformin?
Ask your doctor first. Metformin can lower vitamin B12, and low B12 causes numbness on its own. A blood test can show whether you are low. Cinnamon in the blend may also matter if you take diabetes medicine.
Does NervoMax cause stomach problems?
It might. Bacopa, the third ingredient, commonly causes loose stools, nausea and cramps in studies. Taking the capsules with food may help, though the label does not mention food. Stop if symptoms continue.
What should I do if tingling gets worse on NervoMax?
Stop taking it and call your doctor. Worsening tingling can be a sign of too much vitamin B6, and it usually improves after stopping. Get emergency care if weakness, confusion or trouble speaking appears.
Who wrote this
Written and reviewed by
Plain-language pages built from the bottle label and linked public health sources such as NIH, FDA and Cochrane.
Last updated . Read our editorial standards and how we check reviews. This website is run by Nervomax, a USA authorized NervoMax retailer, not by the manufacturer. We earn money when you buy through our order links.
Keep reading
More about NervoMax
Dosage
One or two capsules a day, never more than two: days per bottle, missed doses and the vitamin B6 math.
Read more
Vitamin B6
Why B6 matters for nerves, why too much can cause tingling, and how to add up your total.
Read more
Numbness: when to see a doctor
The numbness signs that need 911, the ones that need a visit, and how to keep a useful symptom log.
Read moreUSA Authorized NervoMax Retailer
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