Drug & supplement interaction

Cocillana + Naproxen

Naproxen brand names: Naprosyn, Naprelan, Anaprox, Anaprox DS, Naproxyn, and others.

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

We found no known interaction between Cocillana and Naproxen 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

Cocillana and Naproxen

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 Naproxen and Cocillana 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 Cocillana at all — not against Naproxen, 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.

Cocillana safety at a glance

Cocillana overall Use caution It is used in some cough products but lacks strong safety and effectiveness data, and large doses can cause vomiting.
Pregnancy Possibly Unsafe When used orally due to its purported ability to induce menstruation. Read the full pregnancy detail
Breastfeeding Avoid Safety while breastfeeding is unknown, so avoid it unless your doctor advises otherwise.

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 Naproxen and Cocillana? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Naproxen’s Own FDA Label Lists

This is not an interaction — none of it involves Cocillana. These are the most notable effects listed in the ADVERSE REACTIONS section of Naproxen’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. 10 of them are worth acting on rather than waiting out — marked below.

  • Bone thinning Worth acting on
  • Pain or burning when passing urine Worth acting on
  • Muscle weakness Worth acting on
  • Memory problems Worth acting on
  • Dehydration Worth acting on
  • Trouble swallowing Worth acting on
  • Bleeding in the gut Worth acting on
  • Trouble passing urine Worth acting on
  • High potassium Worth acting on
  • Low blood sugar Worth acting on

Showing the 10 most notable of 76 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for Naproxen. Read the label on DailyMed › Where a percentage is shown, it is the share of 165,062 voluntary FDA FAERS reports for Naproxen that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Cocillana’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Cocillana side to compare — that is a limit of the record, not a statement that Cocillana has no side effects.

Special populations

Cocillana in Pregnancy & Breastfeeding

Pregnancy Possibly Unsafe

When used orally due to its purported ability to induce menstruation.

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

From our Q&A

Questions About Cocillana or Naproxen

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Cocillana or Naproxen, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Naproxen

This page covers Cocillana only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Naproxen page lists 311 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Asarabacca (major), Beer (major), Danshen (major) and Piracetam (major).

By severity: 7 major · 260 moderate · 44 minor.

Open the Naproxen interaction page

How much people look this up

Where Cocillana and Naproxen 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 Cocillana
Steady interest

#1,351 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Naproxen
Top 5%

#52 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 Cocillana reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Cocillana and Naproxen 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 Cocillana

What is Cocillana?

  • Cough relief
  • Chest congestion
  • Loosening mucus (expectorant)
  • Bronchitis symptoms

Cocillana is a tree bark traditionally used as an expectorant in cough and cold remedies, often blended with other ingredients. There is very little modern scientific evidence to confirm how well it works, and it can cause nausea or vomiting in higher amounts, so use it cautiously and check with a pharmacist first.

Guarea rusbyi · Meliaceae · Dried bark · Liquid extract, tincture, syrup (often combined with other cough ingredients), tablets

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

Cocillana: dosing

There is no well-established standardized dose for cocillana, and it is usually found as one ingredient among several in cough products. Because higher doses can cause vomiting, the amounts used are typically small.If you choose to use a product containing cocillana, follow the directions on the label exactly and do not take more than recommended.

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

Read the full Cocillana monograph & all interactions
Medication

About Naproxen

What Is Naproxen Used For?

Brand names: Naprosyn, Naprelan, Anaprox, Anaprox DS, Naproxyn, Navalbine, Naproxen, Naprosyn EC, Napro-Na, Aleve, Arthroxen, Synflex, EC-Naprosyn

Naproxen tablets, naproxen sodium tablets, and naproxen oral suspension are used to relieve the signs and symptoms of rheumatoid arthritis, osteoarthritis, ankylosing spondylitis, and polyarticular juvenile idiopathic arthritis. They are also used for tendonitis, bursitis, and acute gout, and for managing pain and primary dysmenorrhea (menstrual cramps).

Naproxen Sodium Controlled-Release Tablets are indicated for the same conditions plus the relief of mild to moderate pain. Several over-the-counter naproxen sodium products are indicated for the temporary relief of minor aches and pains from headache, backache, muscular aches, toothache, menstrual cramps, minor arthritis pain, and the common cold, and to temporarily reduce fever.

Most-Reported Side Effects for Naproxen

From FAERS, the FDA’s public side-effect reporting system (165,062 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Fatigue 13,047 reports
Nausea 12,185 reports
Arthralgia 11,086 reports
Headache 10,504 reports
Diarrhea 9,841 reports
See full Naproxen drug information
Keep checking

Other Drugs & Cocillana

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

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

Cocillana References

The 1 references that drive our Cocillana 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. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.

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 Cocillana and Naproxen Together: Common Questions

Is it safe to take Cocillana with Naproxen?
We do not list a known interaction between Cocillana and Naproxen. 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 Naproxen interact with any supplements?
Yes. Naproxen has documented interactions with 311 supplements in our database — Cocillana is not one of them. The Naproxen 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

Cocillana monograph Uses, safety profile, and every drug interaction in one place Naproxen drug information The full plain-English guide to this medication Naproxen supplement interactions Every supplement checked against Naproxen, 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 Naproxen and Cocillana?

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.