Drug & supplement interaction

American White Water Lily + Ocrelizumab

Ocrelizumab brand name: Ocrevus.

No Known Interaction

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated June 2026 · Pair last verified Oct 4, 2026

The bottom line No known interaction

We found no known interaction between American White Water Lily and Ocrelizumab 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.

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Interaction report

American White Water Lily and Ocrelizumab

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 Ocrelizumab and American White Water Lily 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 American White Water Lily at all — not against Ocrelizumab, 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.

American White Water Lily safety at a glance

American White Wat... overall Use caution Little modern safety data exists, so use cautiously and prefer topical traditional uses over swallowing large amounts.

Pregnancy Avoid Safety has not been studied, so it is best avoided during pregnancy.

Breastfeeding Avoid No reliable safety information is available, so avoid while breastfeeding.

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

Still wondering about combining Ocrelizumab and American White Water Lily? Ask Dr. Brian Staiger, PharmD, BCPS directly ›

What to actually watch for

What Ocrelizumab’s Own FDA Label Lists

This is not an interaction — none of it involves American White Water Lily. These are the most notable effects listed in the ADVERSE REACTIONS section of Ocrelizumab’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both. 3 of them are worth acting on rather than waiting out — marked below.

Low mood Worth acting on
A higher chance of infection Worth acting on mentioned in 6.1% of FDA reports for Ocrelizumab
Liver problems Worth acting on
Pain in an arm or leg
Back pain
Cough
Swelling
Diarrhea

From the ADVERSE REACTIONS section of the FDA label for Ocrelizumab. Read the label on DailyMed › Where a percentage is shown, it is the share of 61,946 voluntary FDA FAERS reports for Ocrelizumab that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. American White Water Lily’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no American White Water Lily side to compare — that is a limit of the record, not a statement that American White Water Lily has no side effects.

Everything else you take

See Every Supplement That Interacts With Ocrelizumab

This page covers American White Water Lily only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Ocrelizumab page lists 53 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Active Hexose Correlated Compound (ahcc) (moderate), Alfalfa (moderate), American Ginseng (moderate), Andrographis (moderate) and Ashwagandha (moderate).

By severity: 52 moderate · 1 minor.

From our pharmacist’s overview on the Ocrelizumab page

“Echinacea, the cold-season staple, revs up the immune system, which is exactly what Ocrevus (ocrelizumab) is given to quiet in multiple sclerosis. That single tension runs through all 53 supplements on this page.”

Reviewed by 2 · Jul 18, 2026

Open the Ocrelizumab interaction page

How much people look this up

Where American White Water Lily and Ocrelizumab 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 American White Water Lily

Steady interest

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

29 days ago today

Medication Ocrelizumab

Steady interest

#2,360 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. American White Water Lily 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 American White Water Lily reference on this page ↓
Freshness: we automatically re-check this combination every week — this pair was last verified October 4, 2026. The American White Water Lily and Ocrelizumab 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 Dr. Brian Staiger, PharmD, BCPS.

Supplement

About American White Water Lily

What is American White Water Lily?

Sore throat and mouth irritation
Vaginal irritation (as a wash or douche)
Skin sores, burns, and boils (topical poultice)
Diarrhea (astringent)
Minor wound care

American white water lily is a North American aquatic plant whose root has a long history of traditional use, mostly as an astringent for skin, mouth, and vaginal complaints. There is very little modern human research to confirm any of these uses, so it should be viewed as a folk remedy rather than a proven treatment. Talk to your pharmacist or doctor before using it, and avoid it if you are pregnant or breastfeeding.

Nymphaea odorata · Nymphaeaceae · Rhizome (root) and flowers; sometimes leaves · Dried root, powder, tea, liquid extract, poultice, and topical washes or gargles

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

American White Water Lily: dosing

There is no established standard dose for American white water lily. Traditional use involved preparing the root as a tea, wash, gargle, or poultice, but exact amounts were not standardized and varied widely.If you choose to use a commercial product, follow the directions on the label and do not exceed them.

From our American White Water Lily monograph — the full record covers uses, side effects and every documented interaction.

Read the full American White Water Lily monograph & all interactions

Medication

About Ocrelizumab Injection

What Is Ocrelizumab Injection Used For?

Brand name: Ocrevus

Ocrelizumab Injection (brand name Ocrevus) treats multiple sclerosis (MS), a long-term condition of the brain and spinal cord.

In adults, Ocrevus is used for relapsing forms of MS and for primary progressive MS. In children 10 years and older who weigh at least 25 kg, it is used for relapsing-remitting MS.

Most-Reported Side Effects for Ocrelizumab

From FAERS, the FDA’s public side-effect reporting system (61,946 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Covid-19 11,575 reports

Fatigue 6,242 reports

Urinary tract infection 3,782 reports

Headache 3,283 reports

Multiple sclerosis 3,029 reports

See full Ocrelizumab Injection drug information

Keep checking

Other Drugs & American White Water Lily

Browse every other medication we’ve checked against American White Water Lily — 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 American White Water Lily 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 American White Water Lily list.

See the full American White Water Lily interactions page

See every supplement checked against Ocrelizumab, ranked by severity

Evidence & sources

American White Water Lily References

The 1 sources that drive our American White Water Lily monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. American White Water Lily is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

Using Dietary Supplements Wisely — NIH NCCIH 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 American White Water Lily and Ocrelizumab Together: Common Questions

Is it safe to take American White Water Lily with Ocrelizumab?

We do not list a known interaction between American White Water Lily and Ocrelizumab. 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 Ocrelizumab interact with any supplements?

Yes. Ocrelizumab has documented interactions with 53 supplements in our database — American White Water Lily is not one of them. The Ocrelizumab 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

American White Water Lily monograph Uses, safety profile, and every drug interaction in one place Ocrelizumab Injection drug information The full plain-English guide to this medication Ocrelizumab supplement interactions Every supplement checked against Ocrelizumab, 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 1 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Ocrelizumab and American White Water Lily?

Our pharmacists answer your medication & supplement questions — free.

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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.