Drug & supplement interaction

Salvia Divinorum + Valacyclovir

Valacyclovir brand name: Valtrex.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Salvia Divinorum and Valacyclovir in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first. Additionally, although there is no interaction, the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

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Interaction report

Salvia Divinorum and Valacyclovir

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Valacyclovir and Salvia Divinorum in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

Worth understanding: our licensed dataset holds no drug-interaction record for Salvia Divinorum at all — not against Valacyclovir, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Salvia Divinorum safety at a glance

Salvia Divinorum overall Avoid It is a potent hallucinogen with no established medical use and limited safety data; it is also restricted or illegal in many areas.
Pregnancy Avoid There is no safety data, and a hallucinogen should not be used during pregnancy.
Breastfeeding Avoid There is no safety data, so it should be avoided while breastfeeding.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Valacyclovir and Salvia Divinorum? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Salvia Divinorum and Valacyclovir May Share Several of the Same Side Effects

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do. 3 of them are worth acting on rather than waiting out — marked below.

  • Unsteadiness / Hallucinations / Confusion Worth acting on Additional detail

    Salvia Divinorum

    “Orally or by inhalation, Salvia divinorum can cause hallucinogenic effects. These include restlessness, hyperactivity, disorientation, loss of coordination, dizziness, slurred speech, altered perceptions, changes in perception of body temperature, personal detachment or distorted body ownership, fatigue, severe mood changes, and psychosis. Most of these effects resolve within 20 minutes;”

    Salvia Divinorum · Natural Medicines adverse-effect record, reported in fatigue.

    6 sources cited
    1. 7350. Valdes LJ 3rd, Diaz JL, Paul AG. Ethnopharmacology of ska Maria Pastora (Salvia divinorum, Epling and Jativa-M.). J Ethnopharmacol 1983;7:287-312.
    2. 7351. Valdes LJ 3rd. Salvia divinorum and the unique diterpene hallucinogen, Salvinorin (divinorin) A. J Psychoactive Drugs 1994;26:277-83.
    3. 15820. Gonzalez D, Riba J, Bouso JC, et al. Pattern of use and subjective effects of Salvia divinorum among recreational users. Drug Alcohol Depend 2006;85:157-62. PubMed
    4. 72901. Bucheler, R., Gleiter, C. H., Schwoerer, P., and Gaertner, I. Use of nonprohibited hallucinogenic plants: increasing relevance for public health? A case report and literature review on the consumption of Salvia divinorum (Diviner's Sage). Pharmacopsychia
    5. 100001. Addy PH, Garcia-Romeu A, Metzger M, Wade J. The subjective experience of acute, experimentally-induced Salvia divinorum inebriation. J Psychopharmacol. 2015;29(4):426-35.
    6. 100002. El-Khoury J, Sahakian N. The association of Salvia divinorum and psychotic disorders: A review of the literature and case series. J Psychoactive Drugs. 2015;47(4):286-92.

    “Neurologic changes caused by Salvia divinorum are rapid, intense, and short-lived. Most evidence suggests a peak effect within 2 minutes following consumption by smoking, with a slower peak when consumed orally. Most symptoms cease within 20 minutes; however, the 'high' can last as long as 2 hours.”

    Salvia Divinorum · Natural Medicines adverse-effect record, reported in cluster headache.

    5 sources cited
    1. 7350. Valdes LJ 3rd, Diaz JL, Paul AG. Ethnopharmacology of ska Maria Pastora (Salvia divinorum, Epling and Jativa-M.). J Ethnopharmacol 1983;7:287-312.
    2. 7351. Valdes LJ 3rd. Salvia divinorum and the unique diterpene hallucinogen, Salvinorin (divinorin) A. J Psychoactive Drugs 1994;26:277-83.
    3. 15820. Gonzalez D, Riba J, Bouso JC, et al. Pattern of use and subjective effects of Salvia divinorum among recreational users. Drug Alcohol Depend 2006;85:157-62. PubMed
    4. 100001. Addy PH, Garcia-Romeu A, Metzger M, Wade J. The subjective experience of acute, experimentally-induced Salvia divinorum inebriation. J Psychopharmacol. 2015;29(4):426-35.
    5. 100002. El-Khoury J, Sahakian N. The association of Salvia divinorum and psychotic disorders: A review of the literature and case series. J Psychoactive Drugs. 2015;47(4):286-92.

    Valacyclovir

    Listed in the ADVERSE REACTIONS section of the FDA label for Valacyclovir. Read the label on DailyMed ›

  • Anxiety or restlessness Additional detail

    Salvia Divinorum

    “Psychiatric changes caused by Salvia divinorum are rapid, intense, and short-lived. Most evidence suggests a peak effect within 2 minutes following consumption by smoking, with a slower peak when consumed orally. Most symptoms cease within 20 minutes; however, the 'high' can last as long as 2 hours.”

    Salvia Divinorum · Natural Medicines adverse-effect record, reported in anxiety.

    3 sources cited
    1. 72901. Bucheler, R., Gleiter, C. H., Schwoerer, P., and Gaertner, I. Use of nonprohibited hallucinogenic plants: increasing relevance for public health? A case report and literature review on the consumption of Salvia divinorum (Diviner's Sage). Pharmacopsychia
    2. 100001. Addy PH, Garcia-Romeu A, Metzger M, Wade J. The subjective experience of acute, experimentally-induced Salvia divinorum inebriation. J Psychopharmacol. 2015;29(4):426-35.
    3. 100002. El-Khoury J, Sahakian N. The association of Salvia divinorum and psychotic disorders: A review of the literature and case series. J Psychoactive Drugs. 2015;47(4):286-92.

    Valacyclovir

    Listed in the ADVERSE REACTIONS section of the FDA label for Valacyclovir. Read the label on DailyMed ›

  • Tiredness / Dizziness Additional detail

    Salvia Divinorum

    Recorded for Salvia Divinorum in the same Natural Medicines adverse-effect record shown under Unsteadiness / Hallucinations / Confusion above.

    Valacyclovir

    Listed in the ADVERSE REACTIONS section of the FDA label for Valacyclovir. Read the label on DailyMed ›

  • Headache Additional detail

    Salvia Divinorum

    Recorded for Salvia Divinorum in the same Natural Medicines adverse-effect record shown under Unsteadiness / Hallucinations / Confusion above.

    Valacyclovir

    Listed in the ADVERSE REACTIONS section of the FDA label for Valacyclovir. Read the label on DailyMed ›

  • Nausea Additional detail

    Salvia Divinorum

    “Orally, Salvia divinorum can cause nausea.”

    Salvia Divinorum · Natural Medicines adverse-effect record, reported in nausea and vomiting.

    1 source cited
    1. 7350. Valdes LJ 3rd, Diaz JL, Paul AG. Ethnopharmacology of ska Maria Pastora (Salvia divinorum, Epling and Jativa-M.). J Ethnopharmacol 1983;7:287-312.

    Valacyclovir

    Listed in the ADVERSE REACTIONS section of the FDA label for Valacyclovir. Read the label on DailyMed ›

Reported for Salvia Divinorum but not commonly for Valacyclovir: mood changes or irritability.

Effects for Valacyclovir come from the ADVERSE REACTIONS section of its FDA label; effects for Salvia Divinorum come from the Natural Medicines adverse-effect record, quoted above. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

From our Q&A

Questions About Salvia Divinorum or Valacyclovir

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Salvia Divinorum or Valacyclovir, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Valacyclovir

This page covers Salvia Divinorum only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Valacyclovir page lists 27 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), African Wild Potato (moderate), Banderol (moderate), Biofeedback (moderate) and Caffeic Acid (moderate).

By severity: 1 major · 17 moderate · 9 minor.

From our pharmacist’s overview on the Valacyclovir page

“Valacyclovir (Valtrex) works against herpes outbreaks only if enough of it gets absorbed into your blood, and most of this list threatens exactly that. Of the 27 supplements on file, 17 can change how well oral medicines like this one are absorbed, and the single major-rated entry, activated charcoal, binds drugs in the gut outright.”

Reviewed by 2 · Jul 18, 2026

Open the Valacyclovir interaction page

How much people look this up

Where Salvia Divinorum and Valacyclovir Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Salvia Divinorum
Steady interest

#899 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Valacyclovir
Top 5%

#31 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Salvia Divinorum reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Salvia Divinorum and Valacyclovir records this page draws on were last updated July 10, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
Supplement

About Salvia Divinorum

What is Salvia Divinorum?

  • Hallucinogenic or psychedelic experiences
  • Spiritual or ritual practices
  • Recreational use
  • Traditional Mazatec healing ceremonies

Salvia divinorum is a powerful hallucinogenic plant traditionally used by the Mazatec people of Mexico and now used recreationally for its short but intense mind-altering effects. There is no proven medical use, the safety is poorly studied, and it is illegal or restricted in many places. Because its effects can be unpredictable and disorienting, we do not recommend using it.

Salvia divinorum · Lamiaceae · Leaves · Dried leaves (smoked), chewed fresh leaves, leaf extracts, tinctures

An interaction check asks whether these two react with each other — it does not ask whether Salvia Divinorum is a good idea for someone in your situation. Here is what our Salvia Divinorum record says about it on its own.

Salvia Divinorum: dosing

There is no established or recommended safe dose for Salvia divinorum. The strength of leaves and extracts varies widely, and concentrated products can be far more potent than plain leaves, making effects hard to predict.Because it is not a proven medicine and is restricted in many areas, we cannot recommend any specific amount.

From our Salvia Divinorum monograph — the full record covers uses, side effects and every documented interaction.

Read the full Salvia Divinorum monograph & all interactions
Medication

About Valacyclovir

What Is Valacyclovir Used For?

Brand name: Valtrex

Valacyclovir tablets are used in adults to treat cold sores (herpes labialis), genital herpes (initial and recurrent episodes), and shingles (herpes zoster). They can also be taken daily as suppressive therapy to reduce how often genital herpes outbreaks occur, and to lower the risk of passing genital herpes to a partner.

In children and adolescents, valacyclovir tablets are used to treat cold sores in those aged 12 and older, and chickenpox in those aged 2 to under 18. Valacyclovir has not been established as safe and effective for most uses in immunocompromised patients, with the exception of suppressive therapy for genital herpes in HIV-infected adults.

Most-Reported Side Effects for Valacyclovir

From FAERS, the FDA’s public side-effect reporting system (70,056 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Fatigue 4,317 reports
Nausea 3,985 reports
Diarrhea 3,648 reports
Headache 2,964 reports
Fever 2,753 reports
See full Valacyclovir drug information
Keep checking

Other Drugs & Salvia Divinorum

Browse every other medication we’ve checked against Salvia Divinorum — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
0Moderate
0Minor
2,829No known interaction
2,829 No interaction
No interaction 2,829 drugs checked — show the list

We also checked Salvia Divinorum against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Salvia Divinorum list.

See the full Salvia Divinorum interactions page
See every supplement checked against Valacyclovir, ranked by severity
Evidence & sources

Salvia Divinorum References

The 6 references that drive our Salvia Divinorum monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

  1. Valdes LJ 3rd, Diaz JL, Paul AG. Ethnopharmacology of ska Maria Pastora (Salvia divinorum, Epling and Jativa-M.). J Ethnopharmacol 1983;7:287-312.
  2. Valdes LJ 3rd. Salvia divinorum and the unique diterpene hallucinogen, Salvinorin (divinorin) A. J Psychoactive Drugs 1994;26:277-83.
  3. Gonzalez D, Riba J, Bouso JC, et al. Pattern of use and subjective effects of Salvia divinorum among recreational users. Drug Alcohol Depend 2006;85:157-62. PubMed
  4. Bucheler, R., Gleiter, C. H., Schwoerer, P., and Gaertner, I. Use of nonprohibited hallucinogenic plants: increasing relevance for public health? A case report and literature review on the consumption of Salvia divinorum (Diviner's Sage). Pharmacopsychia
  5. Addy PH, Garcia-Romeu A, Metzger M, Wade J. The subjective experience of acute, experimentally-induced Salvia divinorum inebriation. J Psychopharmacol. 2015;29(4):426-35.
  6. El-Khoury J, Sahakian N. The association of Salvia divinorum and psychotic disorders: A review of the literature and case series. J Psychoactive Drugs. 2015;47(4):286-92.

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Salvia Divinorum and Valacyclovir Together: Common Questions

Is it safe to take Salvia Divinorum with Valacyclovir?
We do not list a known interaction between Salvia Divinorum and Valacyclovir. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Do Salvia Divinorum and Valacyclovir have any of the same side effects?
Yes — our sources link each of them separately to 8 of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
Does Valacyclovir interact with any supplements?
Yes. Valacyclovir has documented interactions with 27 supplements in our database — Salvia Divinorum is not one of them. The Valacyclovir interaction page linked on this page lists every one, ranked by severity.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Where next

Keep Exploring

Salvia Divinorum monograph Uses, safety profile, and every drug interaction in one place Valacyclovir drug information The full plain-English guide to this medication Valacyclovir supplement interactions Every supplement checked against Valacyclovir, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 6 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Valacyclovir and Salvia Divinorum?

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.