Drug & supplement interaction

Peyote + Ospemifene

Ospemifene brand name: Osphena.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Peyote and Ospemifene 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 label for Ospemifene states a food rule worth keeping to, and 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.

Know someone taking this? Share
Facebook Post Reddit Email
On this page
Interaction report

Peyote and Ospemifene

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 Ospemifene and Peyote 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.

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.

Peyote safety at a glance

Peyote overall Avoid Peyote is a hallucinogen and a controlled substance with no established medical use as a supplement.
Pregnancy Unsafe When used orally. The active constituent of peyote, mescaline, may be teratogenic. Read the full pregnancy detail
Breastfeeding Unsafe When used orally. The active constituent of peyote, mescaline, may be teratogenic. Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Ospemifene and Peyote? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Ospemifene

Interactions in our licensed database are recorded against drug classes, not just single drug names. Ospemifene is filed under 3 classifications — thyroid hormone, cytochrome p450 3a4 (cyp3a4) substrates, oral drugs. Peyote has documented interactions with 1 drug class — the most serious being stimulant drugs (major) — and none of Ospemifene’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Peyote Does Interact With Other Medications

Peyote has 172 major, known drug interactions in our database — Ospemifene isn’t one of them. If you take anything else, check it against the full list below.

Major 172 No known interaction 2,658 (incl. Ospemifene)
Taking anything else?

Check Another of Your Medications Against Peyote

Covers the 2,830 medications we’ve checked against Peyote. Pick one to open its full report.

What to actually watch for

No Interaction Found — But Data Suggests Peyote and Ospemifene May Share a Side Effect

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.

  • Sweating Additional detail

    Peyote

    “Orally, ingestion of peyote can cause mild gastrointestinal effects, including nausea, vomiting, and diarrhea, within the first 30 to 60 minutes of ingestion. It can also cause mydriasis, mild tachycardia, hypertension, sweating, tremor, and visual hallucinations within about an hour after ingestion.”

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

    5 sources cited
    1. 9. Martindale W. Martindale the Extra Pharmacopoeia. Pharmaceutical Press, 1999.
    2. 17. Ellenhorn MJ, et al. Ellenhorn's Medical Toxicology: Diagnoses and Treatment of Human Poisoning. 2nd ed. Baltimore, MD: Williams & Wilkins, 1997.
    3. 68781. Lu, B. Y., Woofter, C., and Escalona, R. A case of prolonged peyote-induced psychosis resolved by sleep. J.Clin.Psychiatry 2004;65(10):1433-1434. PubMed
    4. 68789. Pelner, L. Peyote cult, mescaline hallucinations, and model psychosis. N.Y.State J.Med. 11-1-1967;67(21):2838-2843.
    5. 99284. Carstairs SD, Cantrell FL. Peyote and mescaline exposures: a 12-year review of a statewide poison center database. Clin Toxicol (Phila). 2010;48(4):350-3. PubMed

    “Orally, peyote can cause sympathomimetic effects, including mydriasis, sweating, and tremor, within approximately an hour after ingestion. Mescaline, a constituent of peyote, at doses of 20 mg/kg or greater, can cause respiratory depression and, rarely, death. Symptoms usually subside less than 24 hours after ingestion (9,17, 68775,99284).”

    Peyote · Natural Medicines adverse-effect record, reported in depression.

    Ospemifene

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

Reported for Peyote but not commonly for Ospemifene: hallucinations, raised blood pressure, a fast or pounding heartbeat and a slow heartbeat.

Effects for Ospemifene come from the ADVERSE REACTIONS section of its FDA label; effects for Peyote come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 2,601 voluntary FDA FAERS reports for Ospemifene that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Peyote in Pregnancy & Breastfeeding

Pregnancy And Lactation Unsafe

When used orally. The active constituent of peyote, mescaline, may be teratogenic.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

How to take them

Some Ospemifene Products Have a Food Rule — Peyote Should Not Break It

At least one FDA label for a product containing Ospemifene says to take it with food. If you take Peyote on an empty stomach out of habit, keep them separate — and take Ospemifene with a meal where the label says to.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Ospemifene products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

One tablet taken orally once daily with food.

From the Dosage and Administration section of the FDA label we read for Ospemifene — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

Everything else you take

See Every Supplement That Interacts With Ospemifene

This page covers Peyote only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Ospemifene page lists 155 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Grapefruit (major), St. John's Wort (major), Tiratricol (major) and Acacia Rigidula (moderate).

By severity: 4 major · 112 moderate · 39 minor.

From our pharmacist’s overview on the Ospemifene page

“Women prescribed ospemifene (Osphena) for painful intercourse after menopause are often the same women reaching for St. John's wort for mood or grapefruit juice at breakfast, and both sit among the four major-rated interactions on this page, so the list deserves genuine care.”

Reviewed by 2 · Jul 18, 2026

Open the Ospemifene interaction page

How much people look this up

Where Peyote and Ospemifene 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 Peyote
Steady interest

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

29 days ago today
Medication Ospemifene
Steady interest

#2,474 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 Peyote reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Peyote and Ospemifene 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 Peyote

What is Peyote?

  • Traditional and religious ceremonies
  • Spiritual or visionary experiences
  • Folk use for pain and fatigue
  • Folk use for fever and skin conditions

Peyote is a small spineless cactus that contains mescaline, a powerful hallucinogen. It is a federally controlled substance in the United States (with a narrow exemption for certain Native American religious use), is not a safe or proven dietary supplement, and should not be used for self-treatment.

Lophophora williamsii · Cactaceae · Crown (top) of the cactus, often dried into 'buttons' · Dried buttons, chewed material, brewed tea (used ceremonially); rarely sold as a legal supplement

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

Peyote: dosing

There is no established or safe medical dose for peyote. It is not a regulated supplement, and the amount of mescaline in plant material can vary a great deal, which makes the effects unpredictable and dangerous.Because peyote is a controlled substance and a strong hallucinogen, HelloPharmacist does not provide dosing guidance.

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

Read the full Peyote monograph & all interactions
Medication

About Ospemifene

What Is Ospemifene Used For?

Brand name: Osphena

Osphena (ospemifene) is used to treat two specific symptoms of vulvar and vaginal atrophy — the thinning and drying of vaginal tissues that can happen after menopause. The first is moderate to severe dyspareunia (painful intercourse), and the second is moderate to severe vaginal dryness.

Both of these uses are for postmenopausal women only. Osphena is not used in children or in women who are pregnant or may become pregnant.

Most-Reported Side Effects for Ospemifene

From FAERS, the FDA’s public side-effect reporting system (2,601 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Hot flush 372 reports
Headache 209 reports
Muscle spasms 194 reports
Vaginal haemorrhage 150 reports
Vaginal discharge 134 reports
See full Ospemifene drug information
Keep checking

Other Drugs & Peyote

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

172Major
0Moderate
0Minor
2,657No known interaction
172 Major 2,657 No interaction
Major

172 interactions

Showing 60 of 172 major interactions — see all 172 on the Peyote page.

No interaction 2,657 drugs checked — show the list

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

Showing the 60 most looked-up of 2,657 medications checked with no known interaction — see the full Peyote list.

See the full Peyote interactions page
See every supplement checked against Ospemifene, ranked by severity
Evidence & sources

Peyote References

The 7 references that drive our Peyote 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. Martindale W. Martindale the Extra Pharmacopoeia. Pharmaceutical Press, 1999.
  2. Ellenhorn MJ, et al. Ellenhorn's Medical Toxicology: Diagnoses and Treatment of Human Poisoning. 2nd ed. Baltimore, MD: Williams & Wilkins, 1997.
  3. Gilmore HT. Petoye use during pregnancy. S D J Med 2001;54:27-9.
  4. Nolte, K. B. and Zumwalt, R. E. Fatal peyote ingestion associated with Mallory-Weiss lacerations. West J.Med. 1999;170(6):328.
  5. Lu, B. Y., Woofter, C., and Escalona, R. A case of prolonged peyote-induced psychosis resolved by sleep. J.Clin.Psychiatry 2004;65(10):1433-1434. PubMed
  6. Pelner, L. Peyote cult, mescaline hallucinations, and model psychosis. N.Y.State J.Med. 11-1-1967;67(21):2838-2843.
  7. Carstairs SD, Cantrell FL. Peyote and mescaline exposures: a 12-year review of a statewide poison center database. Clin Toxicol (Phila). 2010;48(4):350-3. PubMed

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 Peyote and Ospemifene Together: Common Questions

Is it safe to take Peyote with Ospemifene?
We do not list a known interaction between Peyote and Ospemifene. 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 Peyote and Ospemifene have any of the same side effects?
Yes — our sources link each of them separately to one 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.
Should I take Peyote and Ospemifene at the same time of day?
At least one FDA label for a product containing Ospemifene says to take it with food. If you take Peyote on an empty stomach out of habit, keep them separate and take Ospemifene with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Ospemifene products can differ — so check the directions on your own box. This is about absorption, not an interaction.
How was the Peyote and Ospemifene combination checked?
Interactions in our licensed database are recorded against drug classes. Ospemifene is filed under 3 classifications, and Peyote has documented interactions with 1 drug class — none of Ospemifene's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.
Does Peyote interact with any other medications?
Yes. Peyote has 172 documented drug interactions in our database — Ospemifene is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.
Does Ospemifene interact with any supplements?
Yes. Ospemifene has documented interactions with 155 supplements in our database — Peyote is not one of them. The Ospemifene 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

Peyote monograph Uses, safety profile, and every drug interaction in one place Ospemifene drug information The full plain-English guide to this medication Ospemifene supplement interactions Every supplement checked against Ospemifene, 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 7 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Ospemifene and Peyote?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.