Metformin and Polytrim drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Metformin (metformin hydrochloride) and Polytrim (polymyxin b sulfate; trimethoprim sulfate). Common drug interactions include dysmenorrhoea among females and conjunctival bleb among males.

The phase IV clinical study analyzes what interactions people have when they take Metformin and Polytrim. It is created by eHealthMe based on reports of 48 people who take the same drugs from the FDA, and is updated regularly.

What is Metformin?

Metformin has active ingredients of metformin hydrochloride. It is often used in diabetes. eHealthMe is studying from 465,354 Metformin users. Check the latest studies of Metformin.

What is Polytrim?

Polytrim has active ingredients of polymyxin b sulfate; trimethoprim sulfate. eHealthMe is studying from 376 Polytrim users. Check the latest studies of Polytrim.



On Jul, 28, 2026

48 people who take Metformin and Polytrim together, and have interactions are studied.

Metformin and Polytrim drug interactions.

What are the common drug interactions of Metformin and Polytrim, by gender? *:

female:

  1. Dysmenorrhoea (painful menstruation)
  2. Eye infection
  3. Eye pain
  4. Eye swelling
  5. Eyelid function disorder
  6. Fatigue (feeling of tiredness)
  7. Foreign body sensation in eyes (feeling of something in eye)
  8. Gastritis (inflammation of stomach)
  9. Haemorrhage (bleeding)
  10. Hyperhidrosis (abnormally increased sweating)

male:

  1. Conjunctival bleb (blister of eye covering)
  2. Cataract subcapsular (cataracts that affect the back of the lens)
  3. Macular fibrosis (a thin sheet of scar tissue forms on top of the macula, in response to damage or injury)
  4. Myocardial infarction (destruction of heart tissue resulting from obstruction of the blood supply to the heart muscle)
  5. Retinal oedema (swelling of retina)
  6. Retinal pigmentation (pigmentation of retina)
  7. Vision blurred
  8. Visual acuity reduced (reduced clearness of vision)
  9. Vitreous detachment (a condition of the eye in which the vitreous humour separates from the retina)
  10. Anaemia (lack of blood)

What are the common drug interactions of Metformin and Polytrim, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

  1. Somnolence (a state of near-sleep, a strong desire for sleep)
  2. Therapeutic response unexpected
  3. Weight decreased
  4. Abdominal pain upper
  5. Back pain
  6. Blister (small pocket of fluid within the upper layers of the skin caused by forceful rubbing (friction), burning, freezing, chemical exposure)
  7. Blood pressure increased
  8. Chest pain
  9. Decreased appetite
  10. Drug ineffective

40-49:

  1. Blood glucose increased
  2. Chorioretinal scar (an area of pigmentary change in eye)
  3. Conjunctival hyperaemia (congestion of conjunctival vessels)
  4. Conjunctivitis allergic (inflammation of the conjunctiva due to allergy)
  5. Cystoid macular oedema (fluid accumulation after cataract surgery)
  6. Eye inflammation
  7. Glaucoma (increased fluid pressure in the eye with vision loss)
  8. Macular degeneration (painless eye condition that leads to the gradual loss of central vision)
  9. Metamorphopsia (a type of distorted vision in which a grid of straight lines appears wavy and parts of the grid may appear blank)
  10. Photopsia (presence of perceived flashes of light)

50-59:

  1. Conjunctival bleb (blister of eye covering)
  2. Cataract subcapsular (cataracts that affect the back of the lens)
  3. Death

60+:

  1. Renal failure (kidney dysfunction)
  2. Arthralgia (joint pain)
  3. Dry mouth
  4. Dry skin
  5. Dysstasia (difficulty in standing)
  6. Fall
  7. Glaucoma (increased fluid pressure in the eye with vision loss)
  8. Hypokinesia (decreased bodily movement)
  9. Macular oedema (fluid and protein deposits collect on or under the macula of the eye (a yellow central area of the retina) and causes it to thicken)
  10. Musculoskeletal pain (pain affects the bones, muscles, ligaments, tendons, and nerves)

What are the existing conditions these people have? *

  1. Diabetic Retinal Oedema (excessive build-up of fluid in the retina due to diabetes): 19 people, 39.58%
  2. High Blood Cholesterol: 17 people, 35.42%
  3. High Blood Pressure: 15 people, 31.25%
  4. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 10 people, 20.83%
  5. Uveitis (inflammation of the uvea): 8 people, 16.67%
  6. Type 2 Diabetes: 5 people, 10.42%
  7. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 5 people, 10.42%
  8. Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 5 people, 10.42%
  9. Corneal Oedema (corneal swelling): 5 people, 10.42%
  10. Pain: 4 people, 8.33%

* Approximation only. Some reports may have incomplete information.

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Related studies:

Effectiveness of, side effects of, and alternative drugs to the 2 drugs:

Browse all drug interactions of Metformin and Polytrim:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Sub-studies by gender and age:

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Browse all side effects of Metformin:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all side effects of Polytrim:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all interactions between Metformin and drugs from A to Z:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all interactions between Polytrim and drugs from A to Z:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Related publications that referenced our studies


How the study uses the data?

The study uses data from the FDA. It is based on metformin hydrochloride and polymyxin b sulfate; trimethoprim sulfate (the active ingredients of Metformin and Polytrim, respectively), and Metformin and Polytrim (the brand names). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered. Dosage of drugs is not considered in the study.

How to use the study?

DO NOT STOP MEDICATIONS without first consulting your doctor. If there are any serious or long term adverse effects discovered in the study, discuss the study with your doctor to ensure that proper medication management will be in place if applicable.

Who is eHealthMe?

With medical big data and proven AI/ML algorithms, eHealthMe provides a platform for everyone to run phase IV clinical trials. We study millions of patients and 5,000 more each day. Results of our real-world drug study have been referenced on 800+ peer-reviewed medical publications, including The Lancet, Mayo Clinic Proceedings, and Nature. Our analysis results are available to researchers, health care professionals, patients (testimonials), and software developers (open API).

WARNING, DISCLAIMER, USE FOR PUBLICATION

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on eHealthMe.com is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only. Our phase IV clinical studies alone cannot establish cause-effect relationship. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

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