Drug & supplement interaction

Cheken + Diphenhydramine Hydrochloride, Naproxen Sodium

Diphenhydramine Hydrochloride, Naproxen Sodium brand name: Aleve PM.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Cheken and Diphenhydramine Hydrochloride, Naproxen Sodium 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 Diphenhydramine Hydrochloride, Naproxen Sodium states a food rule worth keeping to.

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Interaction report

Cheken and Diphenhydramine Hydrochloride, Naproxen Sodium

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 Diphenhydramine Hydrochloride, Naproxen Sodium and Cheken 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 Cheken at all — not against Diphenhydramine Hydrochloride, Naproxen Sodium, 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.

Cheken safety at a glance

Cheken overall Not established Little modern safety data exists, so use with caution and seek professional advice.
Pregnancy Avoid There is not enough safety information, so it is best avoided during pregnancy.
Breastfeeding Avoid Safety during breastfeeding is unknown, so avoid use.

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

Still wondering about combining Diphenhydramine Hydrochloride, Naproxen Sodium and Cheken? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How to take them

Some Diphenhydramine Hydrochloride, Naproxen Sodium Products Have a Food Rule — Cheken Should Not Break It

At least one FDA label for a product containing Diphenhydramine Hydrochloride, Naproxen Sodium says to take it with food. If you take Cheken on an empty stomach out of habit, keep them separate — and take Diphenhydramine Hydrochloride, Naproxen Sodium 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 Diphenhydramine Hydrochloride, Naproxen Sodium 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.

Directions • do not take more than directed • drink a full glass of water with each dose • adults and children 12 years and over: take 2 caplets at bedtime • do not take more than 2 caplets in 24 hours • if taken with food, this product may take longer to work

From the Dosage and Administration section of the FDA label we read for Diphenhydramine Hydrochloride, Naproxen Sodium — where that label names a specific product, the instruction is that product's.

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 Diphenhydramine Hydrochloride, Naproxen Sodium

This page covers Cheken only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Diphenhydramine Hydrochloride, Naproxen Sodium page lists 378 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: 1,4-butanediol (major), Activated Charcoal (major), Asarabacca (major), Beer (major) and Danshen (major).

By severity: 13 major · 320 moderate · 45 minor.

From our pharmacist’s overview on the Diphenhydramine Hydrochloride, Naproxen Sodium page

“Aleve PM combines naproxen, an NSAID, with the sedating antihistamine diphenhydramine, and its supplement list earns genuine care rather than a quick skim. Thirteen of the 378 ingredients on file rate major, and the two largest themes track the pill's two halves.”

Reviewed by 2 · Jul 18, 2026

Open the Diphenhydramine Hydrochloride, Naproxen Sodium interaction page

How much people look this up

Where Cheken and Diphenhydramine Hydrochloride, Naproxen Sodium 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 Cheken
Steady interest

#1,059 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Diphenhydramine Hydrochloride, Naproxen Sodium
Top 5%

#124 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.
  • Freshness: we automatically re-check this combination every week — this pair was last verified October 4, 2026. The Cheken and Diphenhydramine Hydrochloride, Naproxen Sodium records this page draws on were last updated July 11, 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 Cheken

What is Cheken?

  • Cough and chest congestion
  • Bronchitis and respiratory complaints
  • Digestive upset
  • Mild urinary complaints

Cheken is a leaf from a Chilean evergreen shrub traditionally used for coughs and respiratory complaints. There is very little modern human research to confirm it works or to define a safe dose, so use it cautiously and talk with your pharmacist or doctor first.

Myrceugenia chequen · Myrtaceae · Leaves and essential oil · Tea, tincture, liquid extract, dried leaf

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

Cheken: dosing

There is no established standard dose for Cheken. Because it is not well studied, safe and effective amounts have not been defined.If you choose to use a Cheken product, follow the directions on the label and do not exceed them.

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

Read the full Cheken monograph & all interactions
Keep checking

Other Drugs & Cheken

Browse every other medication we’ve checked against Cheken — 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
No interaction 2,829 drugs checked — show the list
Sources

Sources & How We Checked

We checked Cheken against Diphenhydramine Hydrochloride, Naproxen Sodium in the Natural Medicines interaction database and found no documented interaction on file. The medication overview comes from MedlinePlus, and supplement label details from the NIH Dietary Supplement Label Database.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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Pharmacist Counseling Corner

Taking Cheken and Diphenhydramine Hydrochloride, Naproxen Sodium Together: Common Questions

Is it safe to take Cheken with Diphenhydramine Hydrochloride, Naproxen Sodium?
We do not list a known interaction between Cheken and Diphenhydramine Hydrochloride, Naproxen Sodium. 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.
Should I take Cheken and Diphenhydramine Hydrochloride, Naproxen Sodium at the same time of day?
At least one FDA label for a product containing Diphenhydramine Hydrochloride, Naproxen Sodium says to take it with food. If you take Cheken on an empty stomach out of habit, keep them separate and take Diphenhydramine Hydrochloride, Naproxen Sodium with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Diphenhydramine Hydrochloride, Naproxen Sodium products can differ — so check the directions on your own box. This is about absorption, not an interaction.
Does Diphenhydramine Hydrochloride, Naproxen Sodium interact with any supplements?
Yes. Diphenhydramine Hydrochloride, Naproxen Sodium has documented interactions with 378 supplements in our database — Cheken is not one of them. The Diphenhydramine Hydrochloride, Naproxen Sodium interaction page linked on this page lists every one, ranked by severity.

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

Still Have a Question About Diphenhydramine Hydrochloride, Naproxen Sodium and Cheken?

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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.