Drug & supplement interaction

Nasal Irrigation + Erythromycin Stearate

Erythromycin Stearate brand names: Erythro-S, Erythrocin, Ethril.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Nasal Irrigation and Erythromycin Stearate 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

Nasal Irrigation and Erythromycin Stearate

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 Erythromycin Stearate and Nasal Irrigation in our sources. This does not guarantee that the combination is completely free of risk — research on Nasal Irrigation alongside specific medications may be limited.

Worth understanding: our licensed dataset holds no drug-interaction record for Nasal Irrigation at all — not against Erythromycin Stearate, 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.

Nasal Irrigation is used rather than swallowed. Ask your pharmacist or doctor whether it is appropriate alongside your medicines. 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.

Nasal Irrigation safety at a glance

Nasal Irrigation overall Generally safe Generally safe when done with sterile or distilled water and a clean device.
Pregnancy Likely Safe When used appropriately. Saline solution is not harmful to the fetus or newborn. Read the full pregnancy detail
Breastfeeding Likely Safe When used appropriately. Saline solution is not harmful to the fetus or newborn. 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 Erythromycin Stearate and Nasal Irrigation? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Nasal Irrigation and Erythromycin Stearate 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 using Nasal Irrigation while taking the medicine can make those effects more likely to turn up, and harder to pin on one or the other if they do.

  • Nausea Additional detail

    Nasal Irrigation

    “Nasal irrigation can cause mild side effects including nasal burning, pain, stinging, discharge, and irritation, and ear fullness, ringing, and pain. Irrigation solutions with a higher concentration of salt increase these side effects. In rare cases, epistaxis, nausea, coughing, and headaches have occurred.”

    Nasal Irrigation · Natural Medicines adverse-effect record, reported in nausea and vomiting.

    6 sources cited
    1. 16135. Saline nasal irrigation and use of neti pots. Pharmacist's Letter/Prescriber's Letter 2008;24(3):240307.
    2. 17039. Rabago D, Zgierska A. Saline nasal irrigation for upper respiratory conditions. Am Fam Physician 2009;80:1117-9. DOI
    3. 88354. Rabago D, Zgierska A, Mundt M, et al. Efficacy of daily hypertonic saline nasal irrigation among patients with sinusitis: a randomized controlled trial. J Fam Pract 2002;51(12):1049-55.
    4. 93984. Chusakul S, Warathanasin S, Suksangpanya N, et al.. Comparison of buffered and nonbuffered nasal saline irrigations in treating allergic rhinitis. Laryngoscope. 2013 Jan;123(1):53-6. DOI
    5. 93986. Jeffe JS, Bhushan B, Schroeder JW Jr. Nasal saline irrigation in children: a study of compliance and tolerance. Int J Pediatr Otorhinolaryngol. 2012 Mar;76(3):409-13. PubMed
    6. 93988. King D, Mitchell B, Williams CP, Spurling GK. Saline nasal irrigation for acute upper respiratory tract infections. Cochrane Database Syst Rev. 2015 Apr 20;(4):CD006821. PubMed

    “Rarely, nausea has occured.”

    Nasal Irrigation · Natural Medicines adverse-effect record, reported in nausea and vomiting.

    1 source cited
    1. 93986. Jeffe JS, Bhushan B, Schroeder JW Jr. Nasal saline irrigation in children: a study of compliance and tolerance. Int J Pediatr Otorhinolaryngol. 2012 Mar;76(3):409-13. PubMed

    Erythromycin Stearate

    Listed in the ADVERSE REACTIONS section of the FDA label for Erythromycin Stearate. Read the label on DailyMed ›

Reported for Nasal Irrigation but not commonly for Erythromycin Stearate: headache, bleeding or bruising, a higher chance of infection and cough.

Effects for Erythromycin Stearate come from the ADVERSE REACTIONS section of its FDA label; effects for Nasal Irrigation 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

Nasal Irrigation in Pregnancy & Breastfeeding

Pregnancy And Lactation Likely Safe

When used appropriately. Saline solution is not harmful to the fetus or newborn.

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

Overlapping uses

What Erythromycin Stearate Is Prescribed For, and What Nasal Irrigation Has Been Studied For

These two come up together because they touch the same health topic — not because they do the same job. Erythromycin Stearate is a prescription medicine with approved uses on its FDA label. Nasal Irrigation is a self-care method: what follows is what researchers have looked at it for, and how strong that evidence is.

Erythromycin Stearate is prescribed for: Erythromycin treats bacterial infections caused by susceptible organisms. Oral and intravenous forms are used for upper and lower respiratory tract infections, skin and soft-tissue infections, pertussis (whooping cough), Legionnaires' disease, sexually transmitted infections (gonorrhea, syphilis, chlamydia), listeriosis, and other conditions. Erythrocin Lactobionate IV and erythromycin lactobionate injection are specifically for patients who cannot take oral medication or who need rapid, high blood levels due to severe infection — IV therapy should be switched to oral as soon as appropriate. Erythromycin topical solution 2% and Ery 2% Pads (swabs) are indicated only for the topical treatment of acne vulgaris (acne) and are applied directly to the skin — they are not used for internal infections.

Nasal Irrigation has been studied for:

  • Respiratory tract infections studied, not established Nasal Irrigation has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows

    Nasal Irrigation for respiratory tract infections

    Although there is some evidence that nasal irrigation reduces symptoms of various respiratory tract infections, most studies have been small and have a high risk of bias.

Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Erythromycin Stearate on your own; if you are taking Nasal Irrigation for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.

From our Q&A

Questions About Nasal Irrigation or Erythromycin Stearate

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Nasal Irrigation or Erythromycin Stearate, 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 Erythromycin Stearate

This page covers Nasal Irrigation only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Erythromycin Stearate page lists 204 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), American Hellebore (major), Arsenic (major), Beer (major) and Cesium (major).

By severity: 11 major · 153 moderate · 40 minor.

From our pharmacist’s overview on the Erythromycin Stearate page

“Erythromycin stearate (Erythrocin, Ethril) is an antibiotic that asks for real vigilance around supplements. It blocks the body's main drug-clearing enzyme, so the largest share of this list is herbs whose blood levels can climb while you take it.”

Reviewed by 2 · Jul 18, 2026

Open the Erythromycin Stearate interaction page

How much people look this up

Where Nasal Irrigation and Erythromycin Stearate 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 Nasal Irrigation
Steady interest

#1,344 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Erythromycin Stearate
Steady interest

#1,522 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 Nasal Irrigation reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Nasal Irrigation and Erythromycin Stearate 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 .
Self-care method

About Nasal Irrigation

What is Nasal Irrigation?

  • Nasal congestion
  • Sinus infections (sinusitis)
  • Allergies and hay fever
  • Common cold symptoms
  • Postnasal drip
  • Dryness and crusting in the nose

Nasal irrigation is rinsing the inside of your nose with a saltwater (saline) solution to wash out mucus, allergens, and irritants. It is a low-cost, generally safe option that may ease congestion and sinus symptoms, but it must be done with distilled, sterile, or properly boiled water to avoid rare but serious infections.

Saline rinse bottles, neti pots, squeeze bottles, premixed saline packets, nasal sprays

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

Nasal Irrigation: dosing

There is no single official dose for nasal irrigation. Many people rinse once or twice a day when they have symptoms, but you should follow the directions on your specific product or kit.Premixed saline packets are designed to make a comfortable salt concentration, so follow the packet instructions for how much salt and water to combine. If symptoms are not improving, are getting worse, or you have signs of infection like fever, see your doctor.Always use distilled, sterile, or boiled-and-cooled water, and clean your device after each use.

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

Read the full Nasal Irrigation monograph & all interactions
Medication

About Erythromycin

What Is Erythromycin Used For?

Brand names: Erythro-S, Erythrocin, Ethril

Erythromycin treats bacterial infections caused by susceptible organisms. Oral and intravenous forms are used for upper and lower respiratory tract infections, skin and soft-tissue infections, pertussis (whooping cough), Legionnaires' disease, sexually transmitted infections (gonorrhea, syphilis, chlamydia), listeriosis, and other conditions. Erythrocin Lactobionate IV and erythromycin lactobionate injection are specifically for patients who cannot take oral medication or who need rapid, high blood levels due to severe infection — IV therapy should be switched to oral as soon as appropriate.

Erythromycin topical solution 2% and Ery 2% Pads (swabs) are indicated only for the topical treatment of acne vulgaris (acne) and are applied directly to the skin — they are not used for internal infections.

See full Erythromycin drug information
Keep checking

Other Drugs & Nasal Irrigation

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

See the full Nasal Irrigation interactions page
See every supplement checked against Erythromycin Stearate, ranked by severity
Evidence & sources

Nasal Irrigation References

The 43 references that drive our Nasal Irrigation 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. Saline nasal irrigation and use of neti pots. Pharmacist's Letter/Prescriber's Letter 2008;24(3):240307.
  2. Papsin B, McTavish A. Saline nasal irrigation: its role as an adjunct treatment. Can Fam Physician 2003;49:168-73.
  3. Rabago D, Pasic T, Zgierska A, et al. The efficacy of hypertonic saline nasal irrigation for chronic sinonasal symptoms. Otolaryngol Head Neck Surg 2005;133:3-8. PubMed
  4. Garavello W, DiBerardino F, Romagnoli M, et al. Nasal rinsing with hypertonic solution: an adjunctive treatment for pediatric seasonal allergic rhinoconjunctivitis. Int Arch Allergy Immunol 2005;137:310-4. PubMed
  5. Garavello W, Romagnoli M, Sordo L, et al. Hypersaline nasal irrigation in children with symptomatic seasonal allergic rhinitis: a randomized study. Pediatr Allergy Immunol 2003;14:140-3. PubMed
  6. Pynnonen MA, Mukerji SS, Kim HM, et al. Nasal saline for chronic sinonasal symptoms: a randomized controlled trial. Arch Otolaryngol Head Neck Surg 2007;133:1115-20. PubMed
  7. Rabago D, Zgierska A. Saline nasal irrigation for upper respiratory conditions. Am Fam Physician 2009;80:1117-9. DOI
  8. Nsouli TM. Long-term use of nasal saline irrigation: harmful or helpful (abstract 32). Ann Allergy Asthma Immunol 2009;103(5 Suppl 3):A27-8.
  9. North Louisiana woman dies from rare ameba infection. Louisiana Department of Public Health, December 6, 2011. Available at: http://new.dhh.louisiana.gov/index.cfm/newsroom/detail/2332. (Accessed 4 January 2012).
  10. Holmstrom M, Rosen G, Wahlander L. Effect of nasal lavage on nasal symptoms and physiology in wood industry workers. Rhinology 1997;35(3):108-12.
  11. Spraggs PD, Macnamara M, Joseph T. A prospective randomized study to assess the efficacy of post-operative nasal medication after endonasal surgery. J Laryngol Otol 1995;109(7):618-21. PubMed
  12. Seppey M, Schweri T, Hausler R. Comparative randomised clinical study of tolerability and efficacy of Rhinomer Force 3 versus a reference product in post-operative care of the nasal fossae after endonasal surgery. ORL J Otorhinolaryngol .Relat Spec. 1996; PubMed
  13. Cordray S, Harjo JB, Miner L. Comparison of intranasal hypertonic Dead Sea saline spray and intranasal aqueous triamcinolone spray in seasonal allergic rhinitis. Ear Nose Throat J 2005;84(7):426-30. DOI
  14. Tomooka LT, Murphy C, Davidson TM. Clinical study and literature review of nasal irrigation. Laryngoscope 2000;110(7):1189-93. PubMed
  15. Keerl R, Weber R, Draf W, Dshambazov K. [Tolerance, subjective complaints and mucociliary clearance in rhinitis sicca before and after nasal irrigation with Rhinomer Force 1.] Laryngorhinootologie 1998;77(4):196-200.

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

Using Nasal Irrigation While Taking Erythromycin Stearate: Common Questions

Is it safe to use Nasal Irrigation while taking Erythromycin Stearate?
We do not list a known interaction between Nasal Irrigation and Erythromycin Stearate. 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 Nasal Irrigation and Erythromycin Stearate 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.
Are Nasal Irrigation and Erythromycin Stearate used for the same thing?
They overlap in purpose, which usually means the real question is whether you need both rather than whether they are safe together. This page lists the shared uses and how strong the evidence is for Nasal Irrigation in each. That is a conversation for your prescriber, especially if Erythromycin Stearate is being adjusted to a target.
Does Erythromycin Stearate interact with any supplements?
Yes. Erythromycin Stearate has documented interactions with 204 supplements in our database — Nasal Irrigation is not one of them. The Erythromycin Stearate 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

Nasal Irrigation monograph Uses, safety profile, and every drug interaction in one place Erythromycin drug information The full plain-English guide to this medication Erythromycin Stearate supplement interactions Every supplement checked against Erythromycin Stearate, 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 43 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

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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.