Drug & supplement interaction

Wafer Ash + Organophosphate

Organophosphate brand name: Ovide.

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

We found no known interaction between Wafer Ash and Organophosphate 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.

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

Wafer Ash and Organophosphate

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 Organophosphate and Wafer Ash 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 Wafer Ash at all — not against Organophosphate, 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.

Wafer Ash safety at a glance

Wafer Ash overall Not established Modern safety data are very limited, so caution is advised.
Pregnancy Avoid Not enough safety information; avoid during pregnancy.
Breastfeeding Avoid No reliable safety data; best to avoid while breastfeeding.

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

Still wondering about combining Organophosphate and Wafer Ash? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
Everything else you take

See Every Supplement That Interacts With Organophosphate

This page covers Wafer Ash only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Organophosphate page lists 17 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Coffee Charcoal (moderate), European Mandrake (moderate), Glucomannan (moderate) and Guar Gum (moderate).

By severity: 1 major · 7 moderate · 9 minor.

From our pharmacist’s overview on the Organophosphate page

“Organophosphate lotion (Ovide) is a head lice treatment, and even though it goes on the scalp instead of down the throat, this list earns real caution. All 17 ingredients on file are things taken by mouth, mostly fibers, gums, and charcoals that change how much of a drug the body actually keeps.”

Reviewed by 2 · Jul 18, 2026

Open the Organophosphate interaction page

How much people look this up

Where Wafer Ash and Organophosphate 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 Wafer Ash
Steady interest

#1,013 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Organophosphate
Steady interest

#1,782 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. Wafer Ash is not yet covered by that licensed database, so its write-up cites publicly available medical sources directly (see the references below).
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Wafer Ash reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Wafer Ash and Organophosphate records this page draws on were last updated June 22, 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 Wafer Ash

What is Wafer Ash?

  • Digestive complaints
  • Loss of appetite
  • Mild fever
  • Traditional tonic
  • Wound or skin care (folk use)

Wafer Ash (Ptelea trifoliata) is a North American shrub traditionally used in folk and herbal medicine as a bitter digestive tonic. There is very little modern human research to support any health benefit, and its safety has not been well studied, so use cautiously and talk with a pharmacist or doctor first.

Ptelea trifoliata · Rutaceae · Bark (especially root bark), leaves, and fruit · Tincture, dried bark, tea, capsules

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

Wafer Ash: dosing

There is no established, standardized dose for Wafer Ash. It has not been studied enough to know a safe or effective amount.If you choose to use a product, follow the directions on the label exactly and do not exceed them.

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

Read the full Wafer Ash monograph & all interactions
Medication

About Malathion Topical

What Is Malathion Topical Used For?

Brand name: Ovide

Malathion lotion is used to treat head lice (Pediculus humanus capitis) and their eggs (ova) on the scalp hair. It is applied directly to the scalp and hair.

See full Malathion Topical drug information
Keep checking

Other Drugs & Wafer Ash

Browse every other medication we’ve checked against Wafer Ash — 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 Wafer Ash 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 Wafer Ash list.

See the full Wafer Ash interactions page
See every supplement checked against Organophosphate, ranked by severity
Evidence & sources

Wafer Ash References

The 2 sources that drive our Wafer Ash monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Wafer Ash is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. Herbs at a Glance — NIH NCCIH Source
  2. Herbs and Supplements — MedlinePlus Source

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 Wafer Ash and Organophosphate Together: Common Questions

Is it safe to take Wafer Ash with Organophosphate?
We do not list a known interaction between Wafer Ash and Organophosphate. 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.
Does Organophosphate interact with any supplements?
Yes. Organophosphate has documented interactions with 17 supplements in our database — Wafer Ash is not one of them. The Organophosphate 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

Wafer Ash monograph Uses, safety profile, and every drug interaction in one place Malathion Topical drug information The full plain-English guide to this medication Organophosphate supplement interactions Every supplement checked against Organophosphate, 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 2 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Organophosphate and Wafer Ash?

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.