Drug & supplement interaction

Datura Wrightii + Peginterferon alfa-2a

Peginterferon alfa-2a brand name: Pegasys IV.

No Known Interaction

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated July 2026 · Pair last verified Sep 13, 2026

The bottom line No known interaction

We found no known interaction between Datura Wrightii and Peginterferon alfa-2a 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

Datura Wrightii and Peginterferon alfa-2a

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 Peginterferon alfa-2a and Datura Wrightii 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.

Datura Wrightii safety at a glance

Datura Wrightii overall Avoid All parts are highly toxic and poisonings can be fatal; this plant should not be used as a supplement.

Pregnancy Likely Unsafe When plant parts are used orally; avoid using. Read the full pregnancy detail

Breastfeeding Likely Unsafe When plant parts are used orally; avoid using. 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 Peginterferon alfa-2a and Datura Wrightii? Ask Dr. Brian Staiger, PharmD, BCPS directly ›

Keep it in perspective

Datura Wrightii Does Interact With Other Medications

Datura Wrightii has 226 moderate known drug interactions in our database — Peginterferon alfa-2a isn’t one of them. If you take anything else, check it against the full list below.

Moderate 226 No known interaction 2,604 (incl. Peginterferon alfa-2a)

Taking anything else?

Check Another of Your Medications Against Datura Wrightii

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

What to actually watch for

No Interaction Found — But Data Suggests Datura Wrightii and Peginterferon alfa-2a 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. One of them is worth acting on rather than waiting out — marked below.

Hallucinations Worth acting on Additional detail
Datura Wrightii
“Orally, Datura wrightii causes visual and auditory hallucinations, panic, respiratory depression, and death.”

Datura Wrightii · Natural Medicines adverse-effect record, reported in depression.
3 sources cited

26202. Adams, JD Jr, Garcia C. Spirit, Mind and Body in Chumash Healing. Evid Based Complement Alternat Med 2005;2(4):459-463. PubMed

26911. Garcia C, Adams J. Healing with medicinal plants of the west - cultural and scientific basis for their use. La Crescenta, CA: Abedus Press; 2005.

26933. Adams JD, Garcia C. The advantages of traditional chumash healing. Evid Based Complement Alternat Med 2005;2(1):19-23. PubMed
Peginterferon alfa-2a

Listed in the ADVERSE REACTIONS section of the FDA label for Peginterferon alfa-2a. Read the label on DailyMed ›

Effects for Peginterferon alfa-2a come from the ADVERSE REACTIONS section of its FDA label; effects for Datura Wrightii 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.

Special populations

Datura Wrightii in Pregnancy & Breastfeeding

Pregnancy And Lactation Likely Unsafe

When plant parts are used orally; avoid using.

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 much people look this up

Where Datura Wrightii and Peginterferon alfa-2a 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 Datura Wrightii

Steady interest

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

29 days ago today

Medication Peginterferon alfa-2a

Top half

#819 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 Datura Wrightii reference on this page ↓
Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Datura Wrightii and Peginterferon alfa-2a 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 Dr. Brian Staiger, PharmD, BCPS.

Supplement

About Datura Wrightii

What is Datura Wrightii?

Traditional ritual and ceremonial use
Pain relief (traditional/topical)
Asthma and breathing complaints (historical)
Hallucinogenic/psychoactive effects
Skin and wound applications (folk use)

Datura wrightii (sacred datura or jimsonweed relative) is a highly poisonous desert plant that has been used in some traditional and ceremonial settings. It is not a safe dietary supplement — even small amounts can cause severe poisoning, hallucinations, and death. We strongly advise against using it.

Datura wrightii · Solanaceae · Leaves, flowers, seeds, and roots (all parts are toxic) · Traditional ceremonial preparations, topical pastes, smoked plant material (not a standard commercial supplement)

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

Datura Wrightii: dosing

There is no safe or established dose of Datura wrightii. Because the amount of toxic alkaloids varies enormously between plants and plant parts, there is no way to measure a safe amount at home.We do not provide dosing for this plant because we cannot recommend its use.

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

Read the full Datura Wrightii monograph & all interactions

Medication

About Peginterferon Alfa-2a Injection

What Is Peginterferon Alfa-2a Injection Used For?

Brand name: Pegasys IV

Pegasys (peginterferon alfa-2a) is used to treat chronic hepatitis C (CHC) and chronic hepatitis B (CHB). For chronic hepatitis C in adults, Pegasys is typically used in combination with other hepatitis C antiviral drugs; it may be used alone only if other HCV drugs cannot be tolerated or are contraindicated. For children aged 5 and older with CHC, Pegasys is used in combination with ribavirin.

For chronic hepatitis B, Pegasys treats adults who have HBeAg-positive or HBeAg-negative CHB with compensated liver disease and evidence of active viral replication and liver inflammation. In children aged 3 and older with HBeAg-positive CHB (without cirrhosis), Pegasys is also indicated when there is evidence of viral replication and liver enzyme elevation.

See full Peginterferon Alfa-2a Injection drug information

Keep checking

Other Drugs & Datura Wrightii

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

0Major

226Moderate

0Minor

2,603No known interaction

226 Moderate 2,603 No interaction

Moderate

226 interactions

Showing 60 of 226 moderate interactions — see all 226 on the Datura Wrightii page.

No interaction 2,603 drugs checked — show the list

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

Showing the 60 most looked-up of 2,603 medications checked with no known interaction — see the full Datura Wrightii list.

See the full Datura Wrightii interactions page

See every supplement checked against Peginterferon alfa-2a, ranked by severity

Evidence & sources

Datura Wrightii References

The 4 references that drive our Datura Wrightii 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.

Adams, JD Jr, Garcia C. Spirit, Mind and Body in Chumash Healing. Evid Based Complement Alternat Med 2005;2(4):459-463. PubMed
Garcia C, Adams J. Healing with medicinal plants of the west - cultural and scientific basis for their use. La Crescenta, CA: Abedus Press; 2005.
Evans WC, Woolley JG. The alkaloids of Datura meteloides D.C. J Chem Soc Perkin 1. 1965;4936-4939.
Adams JD, Garcia C. The advantages of traditional chumash healing. Evid Based Complement Alternat Med 2005;2(1):19-23. 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 Datura Wrightii and Peginterferon alfa-2a Together: Common Questions

Is it safe to take Datura Wrightii with Peginterferon alfa-2a?

We do not list a known interaction between Datura Wrightii and Peginterferon alfa-2a. 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 Datura Wrightii and Peginterferon alfa-2a 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.

Does Datura Wrightii interact with any other medications?

Yes. Datura Wrightii has 226 documented drug interactions in our database — Peginterferon alfa-2a is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.

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

Where next

Keep Exploring

Datura Wrightii monograph Uses, safety profile, and every drug interaction in one place Peginterferon Alfa-2a Injection drug information The full plain-English guide to this medication Peginterferon alfa-2a supplement interactions Every supplement checked against Peginterferon alfa-2a, 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 4 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Peginterferon alfa-2a and Datura Wrightii?

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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.