Drug & supplement interaction

Phosphatidylcholine + Ciprofloxacin

Ciprofloxacin brand names: Cipro, Ciprobay, Cipro XR, Ciloxan, Cipro IV, 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 Phosphatidylcholine and Ciprofloxacin 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 Ciprofloxacin states a food rule worth keeping to, and 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

Phosphatidylcholine and Ciprofloxacin

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 Ciprofloxacin and Phosphatidylcholine 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 Phosphatidylcholine at all — not against Ciprofloxacin, 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.

Phosphatidylcholine safety at a glance

Phosphatidylcholin... overall Use caution Generally well tolerated in food and supplement amounts, but high doses may cause digestive upset.
Pregnancy Use caution Choline is needed in pregnancy, but supplement safety beyond food sources is not well studied; check with your doctor.
Breastfeeding Use caution Not enough reliable data on supplement use while breastfeeding; speak with your healthcare provider first.

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

Still wondering about combining Ciprofloxacin and Phosphatidylcholine? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Phosphatidylcholine and Ciprofloxacin May Share Several of the Same Side Effects

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 taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do. One of them is worth acting on rather than waiting out — marked below.

  • Bleeding or bruising Worth acting on Additional detail

    Phosphatidylcholine

    “When taken orally, phosphatidylcholine may increase sweating and itching. When given subcutaneously, phosphatidylcholine can cause pain, burning, itching, tenderness to touch, bruising, edema, and erythema at the injection site. The pain, itching and erythema usually resolve within 2 days of treatment; however localized tenderness can last longer. Edema and bruising usually resolve within 10 days of treatment.”

    Phosphatidylcholine · Natural Medicines adverse-effect record, reported in erythema.

    6 sources cited
    1. 5229. Aronson PJ, Lorincz AL. Promotion of palmar sweating with oral phosphatidylcholine. Acta Derm Venereol 1985;65:19-24. DOI
    2. 63244. Loguercio C, Andreone P, Brisc C, et al. Silybin combined with phosphatidylcholine and vitamin E in patients with nonalcoholic fatty liver disease: a randomized controlled trial. Free Radic Biol Med 2012;52(9):1658-65. PubMed
    3. 15623. Rittes PG. The use of phosphatidylcholine for correction of lower lid bulging due to prominent fat pads. Dermatol Surg 2001;27:391-2. PubMed
    4. 15624. Rotunda AM, Kolodney MS. Mesotherapy and phosphatidylcholine injections: historical clarification and review. Dermatol Surg 2006;32:465-80. PubMed
    5. 15626. Hasengschwandtner F. Phosphatidylcholine treatment to induce lipolysis. Cosmet Dermatol 2005;4:308-13. PubMed
    6. 15627. Rittes PG. The use of phosphatidylcholine for correction of localized fat deposits. Aesthetic Plast Surg 2003;27:315-8. PubMed

    Ciprofloxacin

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

  • Sweating / Itching / Swelling Additional detail

    Phosphatidylcholine

    Recorded for Phosphatidylcholine in the same Natural Medicines adverse-effect record shown under Bleeding or bruising above.

    Ciprofloxacin

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

  • Stomach upset / Stomach pain Additional detail

    Phosphatidylcholine

    “Ingesting large amounts of phosphatidylcholine (30 grams per day) can cause gastrointestinal upset and diarrhea. However, bloating, diarrhea, altered taste, nausea, and vomiting have been reported with smaller doses. Although moderate subcutaneous doses do not usually cause systemic side effects, high doses exceeding 1.2 grams of phosphatidylcholine can cause nausea and abdominal pain in some people.”

    Phosphatidylcholine · Natural Medicines adverse-effect record, reported in diarrhea.

    6 sources cited
    1. 5223. Domino EF, May WW, Demetriou S, et al. Lack of clinically significant improvement of patients with tardive dyskinesia following phosphatidylcholine therapy. Biol Psychiatry 1985;20:1189-96. PubMed
    2. 63244. Loguercio C, Andreone P, Brisc C, et al. Silybin combined with phosphatidylcholine and vitamin E in patients with nonalcoholic fatty liver disease: a randomized controlled trial. Free Radic Biol Med 2012;52(9):1658-65. PubMed
    3. 68843. Panos, J. M., Palson, R., Johnson, R., Portmann, B., and Williams, R. Polyunsaturated phosphatidylcholine for acute alcoholic hepatitis: a double blind randomized placebo controlled trial. Eur.J.Gastroenterol 1990;2:351-355.
    4. 93389. Stremmel W, Braun A, Hanemann A, Ehehalt R, Autschbach F, Karner M. Delayed release phosphatidylcholine in chronic-active ulcerative colitis: a randomized, double-blinded, dose finding study. J Clin Gastroenterol 2010;44(5):e101-7. PubMed
    5. 93390. Stremmel W, Ehehalt R, Autschbach F, Karner M. Phosphatidylcholine for steroid-refractory chronic ulcerative colitis: a randomized trial. Ann Intern Med. 2007;147(9):603-10. PubMed
    6. 105728. Stremmel W, Vural H, Evliyaoglu O, Weiskirchen R. Delayed Release Phosphatidylcholine is Effective for Treatment of Ulcerative Colitis: A Meta-Analysis. Dig Dis 2021;39(5):508-515. PubMed

    Ciprofloxacin

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

  • Diarrhea / Vomiting / Nausea Additional detail

    Phosphatidylcholine

    Recorded for Phosphatidylcholine in the same Natural Medicines adverse-effect record shown under Bleeding or bruising above.

    Ciprofloxacin

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

Reported for Phosphatidylcholine but not commonly for Ciprofloxacin: a change in taste and bloating or gas.

Effects for Ciprofloxacin come from the ADVERSE REACTIONS section of its FDA label; effects for Phosphatidylcholine 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.

How to take them

Some Ciprofloxacin Products Have a Food Rule — Phosphatidylcholine Should Not Break It

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

With Dairy Products Concomitant administration of CIPRO with dairy products (like milk or yogurt) or calcium-fortified juices alone should be avoided since decreased absorption is possible; however, CIPRO may be taken with a meal that contains these products.

From the Dosage and Administration section of the FDA label we read for Ciprofloxacin — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›

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.

From our Q&A

Questions About Phosphatidylcholine or Ciprofloxacin

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

This page covers Phosphatidylcholine only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Ciprofloxacin page lists 163 supplements it has a documented interaction with, worst first, each one explained.

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

By severity: 8 major · 133 moderate · 22 minor.

From our pharmacist’s overview on the Ciprofloxacin page

“A glass of apple or grapefruit juice can sharply cut how much ciprofloxacin (Cipro) your body absorbs, because these juices block a transporter the antibiotic needs to reach the bloodstream. That is one of eight major-rated risks among the 163 supplement and herbal ingredients on file, and I treat this list as a genuine warning rather…”

Reviewed by 2 · Jul 18, 2026

Open the Ciprofloxacin interaction page

One more smart check

Taking Phosphatidylcholine as Part of a Dietary Supplement Product? Check It for Interactions

We hold 1,521 real supplement products containing Phosphatidylcholine, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Phosphatidylcholine. Even though Phosphatidylcholine itself has no known interaction with Ciprofloxacin, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Phosphatidylcholine and Ciprofloxacin 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 Phosphatidylcholine
Top 25%

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

29 days ago today
Medication Ciprofloxacin
Top 5%

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

What is Phosphatidylcholine?

Phosphatidylcholine
  • Liver health
  • Memory and brain support
  • Ulcerative colitis
  • Source of choline
  • High cholesterol

Phosphatidylcholine is a phospholipid that is part of every cell membrane and a source of choline. People take it for liver, brain, and gut health, but solid human evidence is limited for most uses. It is generally well tolerated, but talk to your pharmacist or doctor before starting it.

Phospholipid derived from sources such as soybeans, sunflower, and egg yolk · Capsules, softgels, tablets, granules, liquid, and powder (sometimes as part of lecithin)

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

Phosphatidylcholine: dosing

There is no single official or standardized dose of phosphatidylcholine for supplement use. The amount in products varies widely depending on the source and form, and the studied amounts differ from one condition to another.The best approach is to follow the dosing directions on your specific product's label. Higher doses are more likely to cause stomach upset and other side effects.

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

Read the full Phosphatidylcholine monograph & all interactions
Medication

About Ciprofloxacin

What Is Ciprofloxacin Used For?

Brand names: Cipro, Ciprobay, Cipro XR, Ciloxan, Cipro IV, Otiprio

Ciprofloxacin belongs to a class of antibiotics called fluoroquinolones. It's prescribed to treat bacterial infections in many parts of the body — including the urinary tract, skin, lungs, bones, joints, and digestive system. It's also used to protect against or treat anthrax and plague after exposure.

Because ciprofloxacin carries real risks, it's reserved for milder conditions like sinus infections, simple bladder infections, and flare-ups of chronic bronchitis only when there are no safer alternatives available.

See full Ciprofloxacin drug information
Keep checking

Other Drugs & Phosphatidylcholine

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

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

Phosphatidylcholine References

The 15 references that drive our Phosphatidylcholine 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. Domino EF, May WW, Demetriou S, et al. Lack of clinically significant improvement of patients with tardive dyskinesia following phosphatidylcholine therapy. Biol Psychiatry 1985;20:1189-96. PubMed
  2. Aronson PJ, Lorincz AL. Promotion of palmar sweating with oral phosphatidylcholine. Acta Derm Venereol 1985;65:19-24. DOI
  3. Hexsel DM, Serra M, de Oliveira Dal'Forno T, et al. Cosmetic uses of injectable phosphatidylcholine on the face. Otolaryngol Clin North Am 2005;38:1119-29. PubMed
  4. Kopera D, Binder B, Toplak H, et al. Histopathologic changes after intralesional application of phosphatidylcholine for lipoma reduction: report of a case. Am J Dermatopathol 2006;28:331-3. PubMed
  5. Rittes PG. The use of phosphatidylcholine for correction of lower lid bulging due to prominent fat pads. Dermatol Surg 2001;27:391-2. PubMed
  6. Rotunda AM, Kolodney MS. Mesotherapy and phosphatidylcholine injections: historical clarification and review. Dermatol Surg 2006;32:465-80. PubMed
  7. Hexsel D, Serra M, Mazzuco R, et al. Phosphatidylcholine in the treatment of localized fat. J Drugs Dermatol 2003;2:511-8.
  8. Hasengschwandtner F. Phosphatidylcholine treatment to induce lipolysis. Cosmet Dermatol 2005;4:308-13. PubMed
  9. Rittes PG. The use of phosphatidylcholine for correction of localized fat deposits. Aesthetic Plast Surg 2003;27:315-8. PubMed
  10. Ablon G, Rotunda AM. Treatment of lower eyelid fat pads using phosphatidylcholine: clinical trial and review. Dermatol Surg 2004;30:422-7. PubMed
  11. Loguercio C, Andreone P, Brisc C, et al. Silybin combined with phosphatidylcholine and vitamin E in patients with nonalcoholic fatty liver disease: a randomized controlled trial. Free Radic Biol Med 2012;52(9):1658-65. PubMed
  12. Panos, J. M., Palson, R., Johnson, R., Portmann, B., and Williams, R. Polyunsaturated phosphatidylcholine for acute alcoholic hepatitis: a double blind randomized placebo controlled trial. Eur.J.Gastroenterol 1990;2:351-355.
  13. Stremmel W, Braun A, Hanemann A, Ehehalt R, Autschbach F, Karner M. Delayed release phosphatidylcholine in chronic-active ulcerative colitis: a randomized, double-blinded, dose finding study. J Clin Gastroenterol 2010;44(5):e101-7. PubMed
  14. Stremmel W, Ehehalt R, Autschbach F, Karner M. Phosphatidylcholine for steroid-refractory chronic ulcerative colitis: a randomized trial. Ann Intern Med. 2007;147(9):603-10. PubMed
  15. Stremmel W, Vural H, Evliyaoglu O, Weiskirchen R. Delayed Release Phosphatidylcholine is Effective for Treatment of Ulcerative Colitis: A Meta-Analysis. Dig Dis 2021;39(5):508-515. PubMed

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 Phosphatidylcholine and Ciprofloxacin Together: Common Questions

Is it safe to take Phosphatidylcholine with Ciprofloxacin?
We do not list a known interaction between Phosphatidylcholine and Ciprofloxacin. 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 Phosphatidylcholine and Ciprofloxacin have any of the same side effects?
Yes — our sources link each of them separately to 9 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.
Should I take Phosphatidylcholine and Ciprofloxacin at the same time of day?
At least one FDA label for a product containing Ciprofloxacin says to take it with food. If you take Phosphatidylcholine on an empty stomach out of habit, keep them separate and take Ciprofloxacin with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Ciprofloxacin products can differ — so check the directions on your own box. This is about absorption, not an interaction.
Does Ciprofloxacin interact with any supplements?
Yes. Ciprofloxacin has documented interactions with 163 supplements in our database — Phosphatidylcholine is not one of them. The Ciprofloxacin 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

Phosphatidylcholine monograph Uses, safety profile, and every drug interaction in one place Ciprofloxacin drug information The full plain-English guide to this medication Ciprofloxacin supplement interactions Every supplement checked against Ciprofloxacin, 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 15 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Ciprofloxacin and Phosphatidylcholine?

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.