Safety, source by source
Flow Nerves Side Effects: Is It Safe? Ingredient by Ingredient
Flow Nerves side effects have not been studied, because no trial of the capsule exists in our sources. What we can do is list the cautions that NIH, MSK, Mayo Clinic, WebMD and Drugs.com give for each of its six ingredients. Stomach upset is the most common. Medicine interactions matter most, so ask a pharmacist first.
- 0 trialsof the capsule found
- 6 listsone per ingredient
- Stomachthe most common complaint
- 911for swelling or trouble breathing
Written by the Flow Nerves label deskUpdated
The short answer
What are the Flow Nerves side effects?
No one can list the Flow Nerves side effects with certainty, because no study of the capsule exists in the sources we read. The six single ingredients each have known side effects, and those are what we list.
Since the label prints no amount for any ingredient, we cannot say how close a capsule is to the amounts in those sources. A side effect named at a high dose may not appear at a small one. The honest answer is that nobody outside the maker knows.
FDA does not approve dietary supplements before they are sold (FDA, Dietary supplement Q&A). A supplement is not a drug, and a label that says NERVE SUPPORT* has not been checked for safety by FDA.
By ingredient
What side effects does each Flow Nerves ingredient have?
The most common side effects across the six names are stomach and digestive complaints: nausea, diarrhea, cramps and heartburn. A few have more specific cautions, shown in the table.
| Ingredient | Side effects named by a source | Source |
|---|---|---|
| Magnesium glycinate | Diarrhea is often caused by high doses from supplements. | NIH |
| Alpha lipoic acid | Nausea, vomiting, indigestion; low blood sugar symptoms at high doses. | MSK |
| Butcher's broom | Diarrhea and nausea; allergic reactions can be serious. | WebMD |
| L-carnitine | At about 3 g a day: nausea, vomiting, cramps, diarrhea, fishy body odor. | NIH |
| Turmeric extract | Highly bioavailable curcumin may harm the liver. | NCCIH |
| Coenzyme Q10 | Upper stomach pain, loss of appetite, nausea, diarrhea, dizziness, headache, rash. | Mayo Clinic |
Details and sources are on each ingredient page, such as magnesium glycinate and turmeric extract. These sources are for the single ingredients. They are not tests of Flow Nerves (NIH ODS, Magnesium).
Is it safe?
Is Flow Nerves safe to take?
We cannot call Flow Nerves safe or unsafe for you. Safety depends on your medicines, your health and the amounts in the capsule, and the amounts are not printed.
The directions we have say one capsule daily with a meal and a full glass of water, for adults 18 and older. Confirm them on your bottle. Ask a doctor first if you are pregnant or nursing, take medicine or have a medical condition. The bottle's own caution text was not supplied.
NCCIH says to talk to your providers if you are pregnant, nursing or trying to conceive, and to tell them about every supplement before surgery (NCCIH, Using supplements wisely).
Never stop or change a prescribed medicine because of a supplement. Ask your doctor or pharmacist first if you take diabetes medicine or insulin, a blood thinner, blood pressure medicine, thyroid medicine, antibiotics or seizure medicine, or have kidney or liver disease.
Medicines
Which medicines raise the risk of side effects?
Each of the six ingredients has a documented link to at least one common medicine. The table gives the headline for each, and the full Switchboard has the sources.
| If you take | Which names a source links |
|---|---|
| Diabetes medicine or insulin | Alpha lipoic acid (low blood sugar), magnesium, coenzyme Q10 |
| Warfarin or another blood thinner | Turmeric, coenzyme Q10, L-carnitine, magnesium |
| Blood pressure medicine | Magnesium, butcher's broom, coenzyme Q10 |
| Antibiotics | Magnesium (spacing), L-carnitine (some types) |
| Thyroid or seizure medicine | L-carnitine |
The Medicine Switchboard lets you tap your medicines and see the wires light up. The sources behind the table include the NIH fact sheets on magnesium and carnitine (NIH ODS, Magnesium) and MSK's pages on each herb (MSK, Carnitine).
Low blood sugar can feel like shaking, sweating, hunger, dizziness or a fast heartbeat, and very low blood sugar needs treatment right away (NIDDK, Low blood glucose).
When to act
When should you stop and call a doctor?
Stop taking Flow Nerves and call a doctor or pharmacist if you have a reaction you do not expect, and call 911 for swelling of the face or throat, trouble breathing, chest pain, fainting or sudden weakness on one side.
- Sudden weakness or numbness on one side, trouble speaking, chest pain, trouble breathingThese can signal an emergency. Do not wait.Call 911
- Swelling of the lips, face or throat, hives, or trouble breathing after a supplementAllergic reactions to butcher's broom can be serious, WebMD says. Stop and call 911.Call 911
- Confusion, shaking, sweating or a very fast heartbeat if you take diabetes medicineThese can be signs of low blood sugar, and very low blood sugar needs treatment right away, NIDDK says.Call 911
- New tingling, weakness or pain in your hands or feetMayo Clinic says to seek medical care right away. Early diagnosis gives the best chance of managing symptoms.See a doctor
- A foot sore that is infected or will not healCDC lists it among the reasons to call your doctor if you have diabetes.See a doctor
- Falls, lost coordination or muscle weaknessMayo Clinic lists them as symptoms to have checked.See a doctor
- Burning, tingling or pain that disrupts your day or your sleepCDC says to call your doctor, and to keep notes on the symptoms to share.See a doctor
- Changes in digestion, urination or sexual function, dizziness or faintingCDC lists these with nerve damage in people with diabetes.See a doctor
Signs from (Mayo Clinic, Peripheral neuropathy) and (CDC, Diabetes and nerve damage). This list is not complete, and a supplement is never a reason to wait.
Do not wait to see whether a symptom passes if it is severe. Bring the bottle to your visit. Our guide on when to see a doctor covers numbness and tingling in particular.
Reporting
How do you report a side effect?
Report a serious side effect to FDA through MedWatch, its program for problems with medical products. Consumers and clinicians can both send a report (FDA, MedWatch).
Also tell the order desk at +1 (302) 200-3480, and tell your own doctor. Write down the date, how many capsules you took, what you ate, and what else you take. Keep the bottle.
- Note the lot number from the bottle.
- List every medicine and supplement you take.
- Bring both to your pharmacist or doctor.
If numbness or tingling in your hands or feet is new or getting worse, see a doctor first. Mayo Clinic says to seek medical care right away (Mayo Clinic, Peripheral neuropathy).
FAQ
Flow Nerves questions people ask
Does Flow Nerves cause nausea or diarrhea?
It might. Magnesium, alpha lipoic acid, butcher's broom, L-carnitine and coenzyme Q10 are each linked by a source to nausea or diarrhea in some people. No study of the capsule exists, and no amount is printed.
Can Flow Nerves cause low blood sugar?
Alpha lipoic acid can add to diabetes medicine, and MSK says high doses can cause low blood sugar symptoms (MSK, Alpha-lipoic acid). If you take diabetes medicine or insulin, ask your pharmacist before you start.
Is Flow Nerves safe with blood thinners?
Ask your doctor first. Sources link turmeric, L-carnitine and coenzyme Q10 to blood thinner effects, in different ways. Do not stop your blood thinner because of a supplement.
Is Flow Nerves safe during pregnancy?
Ask your clinician. Mayo Clinic says not to use coenzyme Q10 in pregnancy without approval, and Drugs.com advises avoiding butcher's broom (Mayo Clinic, Coenzyme Q10).
Can Flow Nerves harm the liver?
NCCIH says highly bioavailable curcumin formulas may harm the liver. We do not know whether the turmeric in Flow Nerves is one of them (NCCIH, Turmeric). Tell your doctor if you have liver disease.
Are there long-term Flow Nerves safety studies?
None in our sources. No study of the capsule exists, so long-term safety is not known. Tell your doctor about every supplement you take for more than a few weeks.
Who wrote this
Written and reviewed by
Pages built from the label, the brand panels and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site for a U.S. stocking partner for Flow Nerves. It is not the manufacturer or a distributor named on the label. We earn money when you buy through our order links.
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Ready to try Flow Nerves?
Check your medicines first with the Switchboard, especially diabetes medicine, blood thinners and blood pressure medicine, and see a doctor about new numbness or tingling, then pick a pack. On the seller's count one bottle is 30 days; 3 bottles cover 90 days and 6 cover 180.
- Pay at the seller checkout
- 60-day guarantee
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