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Prescribed acyclovir or valacyclovir? Check supplements first
Antiviral medicine and supplements need a pharmacist's check before they share a week. Acyclovir and valacyclovir are cleared by the kidneys, so kidney questions come first. Reviralis Complete is a dietary supplement, not an antiviral, and no source shows it works like one or should replace a prescription.
Written by the Goreviralis label deskUpdated · 5 min read

The basics01
Can you take supplements with acyclovir or valacyclovir?
That is a pharmacist's call, because the drug and the capsule share one path: the kidneys.
These prescription antivirals, along with famciclovir, are the proven care for herpes simplex infections, both for episodes and for daily use. CDC guidelines describe both patterns, and a clinician decides which fits (CDC, STI Treatment Guidelines: Herpes). A Cochrane review of cold-sore prevention found no evidence that lysine or one other supplement worked (Chi 2015, Cochrane: Preventing Cold Sores). It also found that long-term oral antivirals cut cold-sore recurrences, though it calls the benefit small.
Keep taking prescribed medicine, including any antiviral, exactly as directed. Do not stop or swap it for a capsule. The Reviralis label never mentions herpes or any disease, and no source we cite shows that it or any of its 40 names does anything for it.
Kidneys02
Why do kidneys come up with antivirals?
The kidneys clear these drugs, so how well they work sets the dose.
A person with reduced kidney function may be given a lower dose or a longer gap, and is usually told to drink fluids. A capsule that holds minerals or herbs the kidneys must also handle is a fair thing to mention. It is a question, not a warning that anything will happen.
| Line | Printed amount | Why a pharmacist may ask |
|---|---|---|
| Potassium | 50 mg | Kidneys control potassium |
| Magnesium | 50 mg | Kidneys clear extra magnesium |
| Licorice root extract (14th) | Not printed (at most 47.21 mg) | Can shift potassium and pressure |
| Vanadyl sulfate (17th) | Not printed (at most 38.88 mg) | Vanadium has a 1.8 mg adult limit |
The ceilings come from label order, not from a lab test, and the real amounts may be lower. Read the kidney disease post for more.
At the counter03
What should you ask your pharmacist?
Show the panel, say which antiviral you take, and ask these four things.
- Do my kidneys call for a different dose or more fluids while I take this?
- Does anything on this label matter with my antiviral?
- Should the capsule and the antiviral be taken at different times?
- Who do I call if I miss an antiviral dose?
Answer the five questions below to see which parts of the label call for a provider first.

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 packsSafety04
When do symptoms need a clinician or 911?
A new sore or rash that is painful, spreading, near the eye or slow to heal needs a clinician, because other conditions look alike.
See a clinician for a diagnosis rather than guessing. Eye involvement is urgent. Call 911 for trouble breathing, a seizure, chest pain, swelling of the face or throat, or sudden confusion with a severe headache and stiff neck.
The label is not for anyone under 18, and it asks readers who are pregnant, nursing or have a history of seizures to speak to a provider first. See the antivirals guide, the supplements and herpes guide and the medicine check page.
FAQ05
Reviralis questions people ask
Is Reviralis Complete an antiviral?
No. It is a dietary supplement in capsules, not a drug, and its label never names herpes or any disease. Prescription antivirals such as acyclovir and valacyclovir are medicines. No source we cite shows that Reviralis acts like one.
Can I take a multivitamin with valacyclovir?
Many people do, but ask your pharmacist first. Valacyclovir is cleared by the kidneys, so your kidney function and your whole list matter. Show the Supplement Facts panel and say the blend amounts are not printed.
Should I drink extra water with antivirals?
Pharmacists often advise good fluid intake with acyclovir and valacyclovir, especially with reduced kidney function. Follow the advice on your own prescription, and ask whether it changes with the capsule.
Can a supplement replace my antiviral?
No. Keep taking prescribed medicine exactly as directed. Supplements have not been shown to match antivirals, and stopping a prescription on your own can change how well it works. Talk to your prescriber about any change.
Who wrote this06
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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