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Vanadyl Sulfate Side Effects: Why the 1.8 mg Vanadium Limit Matters
Vanadyl sulfate is a vanadium salt, and the adult upper limit for vanadium is 1.8 mg a day. The Reviralis label lists it 17th in a 661 mg blend with no amount, so it can hold at most 38.88 mg. At that ceiling the vanadium alone would pass the limit. The label does not say that it does.
Written by the Goreviralis label deskUpdated · 5 min read
What is the upper limit for vanadium?
For adults, 1.8 mg of vanadium a day. The National Academies set it and did not set a recommended daily amount, because no need for vanadium has been shown in people (National Academies, trace-element DRIs).
That detail changes how to read a label. For a nutrient like zinc, the label can say you get a useful amount. For vanadium there is no useful amount to reach, only a limit to avoid crossing.
The cited sources give the limit. They do not list a set of side effects with rates, so this post does not invent one. If you notice stomach upset or any new symptom after a supplement, tell a clinician.
How much vanadyl sulfate can the Reviralis blend hold?
At most 38.88 mg per serving of two capsules. Vanadyl sulfate is the 17th of 18 names in the 661 mg proprietary blend.
US rules list blend members from most to least by weight (21 CFR 101.36). The 17th name cannot weigh more than 661 divided by 17, which is 38.88 mg. About 31% of vanadyl sulfate is vanadium. At the ceiling, that is about 12 mg of vanadium (38.88 times 0.31). The limit is 1.8 mg.
Flip the sum. The amount of vanadyl sulfate that carries 1.8 mg of vanadium is 1.8 divided by 0.31, or about 5.8 mg. Anything above 5.8 mg per serving would pass the limit.
| Step | Value |
|---|---|
| Blend total | 661 mg |
| Vanadyl sulfate position | 17th of 18 |
| Ceiling per serving | At most 38.88 mg |
| Vanadium share of the salt | About 31% |
| Vanadium at the ceiling | About 12 mg |
| Adult upper limit | 1.8 mg |
| Salt weight that equals the limit | About 5.8 mg |
| Printed amount | Not printed |
Does that mean Reviralis exceeds the limit?
No one can say from the label. The ceiling shows what is possible, not what is there.
The real amount could be a trace, or anywhere up to 38.88 mg. The label prints neither. That is the point of the post: a hidden amount means a buyer cannot check a limit, and when the possible range crosses the limit, the question deserves an answer from the seller.
"How many milligrams of vanadyl sulfate, and how much elemental vanadium, are in each serving of two capsules? Please answer in writing." Use the order desk or [email protected].
Until there is an answer, treat the 17th name as a flag, not a verdict. See the blend page for all 18 ceilings.
Reviralis: from $49 a bottle60 capsules a bottle · 2, 3 or 6 bottles · free US shipping on 3 and 6 · 60-day money-back guarantee
See packsWho should be most careful?
Anyone who also takes another vanadium or multimineral supplement, since amounts add. Anyone pregnant, nursing, under 18, or on prescription medicine should ask first.
The label asks you to consult your healthcare provider before use if you are pregnant or nursing, have a medical condition, have a history of seizures, or take prescription medicine. Keep taking prescribed medicine, including any antiviral.
"One blend line could hold more vanadium than the 1.8 mg limit. How should I weigh that with my other supplements?"
What does this mean for a buying decision?
It means an unprinted blend amount carries a cost you pay in doubt.
Weigh it against the printed strengths: 22 vitamin and mineral lines with amounts, a month per bottle and a 60-day guarantee as listed (confirm at checkout). Read the side effects page and the ingredients page. A related limit: boron.
No source tested Reviralis, and none ties vanadium to herpes.
FAQ01
Reviralis questions people ask
What is the upper limit for vanadium?
Adults should stay under 1.8 mg of vanadium a day, according to the National Academies. There is no recommended daily amount.
How much vanadium is in vanadyl sulfate?
About 31% of its weight. So 5.8 mg of vanadyl sulfate carries roughly 1.8 mg of vanadium, the adult upper limit.
How much vanadyl sulfate is in Reviralis?
The label does not print it. It is 17th of 18 names in a 661 mg blend, so it holds at most 38.88 mg per serving. The real amount may be far lower.
Does vanadyl sulfate lower blood sugar?
The cited sources do not show it does. Ask your prescriber before any vanadium product if you take diabetes medicine.
Can the blend ceiling tell me the actual amount?
No. It shows only the most a name can hold, given the label order. The actual amount stays unknown until the seller states it.
Who wrote this02
Written and reviewed by
Pages built from the label, the sales page and linked NIH, CDC, FDA, FTC, Mayo Clinic 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 Reviralis. It is not the manufacturer or the distributor named on the label. We earn money when you buy through our order links.
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Check your medicines with your pharmacist first, then pick a pack. Six bottles cost the least per bottle; three and six ship free in the US; every pack carries the 60-day money-back guarantee. Keep taking any prescribed antiviral exactly as directed.
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