Drug & supplement interaction

Tylophora + Trimethoprim , Polymyxin B

Trimethoprim , Polymyxin B brand name: Polytrim Ophthalmic.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Tylophora and Trimethoprim , Polymyxin B 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

Tylophora and Trimethoprim , Polymyxin B

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 Trimethoprim , Polymyxin B and Tylophora 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 Tylophora at all — not against Trimethoprim , Polymyxin B, 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.

Tylophora safety at a glance

Tylophora overall Use caution Evidence is limited and the plant can cause nausea, vomiting, and other side effects.
Pregnancy Avoid Not enough safety data, and traditional concerns suggest it should be avoided in pregnancy.
Breastfeeding Avoid Safety during breastfeeding is unknown, so it is best avoided.

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

Still wondering about combining Trimethoprim , Polymyxin B and Tylophora? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Tylophora Itself Has Been Linked To

This is not an interaction — nothing below involves Trimethoprim , Polymyxin B. It is the side-effect record for Tylophora on its own, from the licensed Natural Medicines monograph. If something new turns up after you add Tylophora, this list is the first place to look.

  • A change in taste / Vomiting / Nausea Additional detail

    “Orally, Tylophora might cause nausea, vomiting, change in taste, and mouth soreness.”

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

    5 sources cited
    1. 29118. Mathew KK, Shivpuri DN. Treatment of asthma with alkaloids of Tylophora indica - a double blind study. Aspects of Allergy Appl Immunol 1974;7:166-179.
    2. 29119. Gupta S, George P, Gupta V, et al. Tylophora indica in bronchial asthma--a double blind study. Indian J Med Res 1979;69:981-989.
    3. 29120. Shivpuri DN, Menon MP, Prakash D. A crossover double-blind study on Tylophora indica in the treatment of asthma and allergic rhinitis. J Allergy 1969;43(3):145-150.
    4. 29121. Shivpuri DN, Menon MP, Parkash D. Preliminary studies in Tylophora indica in the treatment of asthma and allergic rhinitis. J Assoc Physicians India 1968;16(1):9-15.
    5. 29122. Shivpuri DN, Singhal SC, Parkash D. Treatment of asthma with an alcoholic extract of tylophora indica: a cross-over, double-blind study. Ann Allergy 1972;30(7):407-412.

    “Orally, Tylophora leaf has been reported to cause nausea in up to 10.8% of patients, vomiting in up to 16.6% of patients, mild upper abdominal pain in up to 5.6% of patients, and soreness of the mouth or loss of taste in up to 1.4% of patients in clinical research.”

    Tylophora · Natural Medicines adverse-effect record, reported in hypogeusia.

    5 sources cited
    1. 29118. Mathew KK, Shivpuri DN. Treatment of asthma with alkaloids of Tylophora indica - a double blind study. Aspects of Allergy Appl Immunol 1974;7:166-179.
    2. 29119. Gupta S, George P, Gupta V, et al. Tylophora indica in bronchial asthma--a double blind study. Indian J Med Res 1979;69:981-989.
    3. 29120. Shivpuri DN, Menon MP, Prakash D. A crossover double-blind study on Tylophora indica in the treatment of asthma and allergic rhinitis. J Allergy 1969;43(3):145-150.
    4. 29121. Shivpuri DN, Menon MP, Parkash D. Preliminary studies in Tylophora indica in the treatment of asthma and allergic rhinitis. J Assoc Physicians India 1968;16(1):9-15.
    5. 29122. Shivpuri DN, Singhal SC, Parkash D. Treatment of asthma with an alcoholic extract of tylophora indica: a cross-over, double-blind study. Ann Allergy 1972;30(7):407-412.
  • Mouth irritation or sores Additional detail

    Recorded for Tylophora in the same Natural Medicines adverse-effect record shown under A change in taste / Vomiting / Nausea above.

  • Stomach pain Additional detail

    Recorded for Tylophora in the same Natural Medicines adverse-effect record shown under A change in taste / Vomiting / Nausea above.

Everything above comes from the Natural Medicines adverse-effect record for Tylophora — expand a row for the licensed statement it rests on. We read the ADVERSE REACTIONS section of Trimethoprim , Polymyxin B’s FDA label too, and the two lists don’t meaningfully overlap — which is why no Trimethoprim , Polymyxin B column appears here.

How much people look this up

Where Tylophora and Trimethoprim , Polymyxin B 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 Tylophora
Steady interest

#1,153 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Trimethoprim , Polymyxin B
Steady interest

#2,419 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 Tylophora reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Tylophora and Trimethoprim , Polymyxin B 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 .
Supplement

About Tylophora

What is Tylophora?

  • Asthma
  • Allergies and hay fever
  • Bronchitis and respiratory complaints
  • Inflammatory conditions
  • Digestive upset

Tylophora is a climbing plant used in traditional Indian (Ayurvedic) medicine, most often for asthma and breathing problems. Some older, small studies suggested possible benefit for asthma, but the evidence is weak and limited, and the plant can cause notable side effects. Talk to your pharmacist or doctor before trying it, and never use it to replace proven asthma treatments.

Tylophora indica · Apocynaceae · Leaves and roots · Capsules, dried leaf powder, tinctures, and traditional leaf preparations

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

Tylophora: dosing

There is no well-established or standardized dose for Tylophora. Older studies used small amounts of dried leaf for short periods, but these doses have not been confirmed as safe or effective.If you choose to use a product, follow the directions on the label and do not exceed them.

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

Read the full Tylophora monograph & all interactions
Keep checking

Other Drugs & Tylophora

Browse every other medication we’ve checked against Tylophora — 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
Evidence & sources

Tylophora References

The 6 references that drive our Tylophora 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. Thiruvengadam KV, Haranath K, Sudarsan S, et al. Tylophora indica in bronchial asthma (a controlled comparison with a standard anti-asthmatic drug). J Indian Med Assoc 1978;71(7):172-176.
  2. Mathew KK, Shivpuri DN. Treatment of asthma with alkaloids of Tylophora indica - a double blind study. Aspects of Allergy Appl Immunol 1974;7:166-179.
  3. Gupta S, George P, Gupta V, et al. Tylophora indica in bronchial asthma--a double blind study. Indian J Med Res 1979;69:981-989.
  4. Shivpuri DN, Menon MP, Prakash D. A crossover double-blind study on Tylophora indica in the treatment of asthma and allergic rhinitis. J Allergy 1969;43(3):145-150.
  5. Shivpuri DN, Menon MP, Parkash D. Preliminary studies in Tylophora indica in the treatment of asthma and allergic rhinitis. J Assoc Physicians India 1968;16(1):9-15.
  6. Shivpuri DN, Singhal SC, Parkash D. Treatment of asthma with an alcoholic extract of tylophora indica: a cross-over, double-blind study. Ann Allergy 1972;30(7):407-412.

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 Tylophora and Trimethoprim , Polymyxin B Together: Common Questions

Is it safe to take Tylophora with Trimethoprim , Polymyxin B?
We do not list a known interaction between Tylophora and Trimethoprim , Polymyxin B. 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.

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

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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.