Norco and Trimethoprim drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Norco (acetaminophen; hydrocodone bitartrate) and Trimethoprim (trimethoprim). Common drug interactions include thyroid disorder among females and headache among males.

The phase IV clinical study analyzes what interactions people have when they take Norco and Trimethoprim. It is created by eHealthMe based on reports of 24 people who take the same drugs from the FDA, and is updated regularly.

What is Norco?

Norco has active ingredients of acetaminophen; hydrocodone bitartrate. It is often used in pain. eHealthMe is studying from 74,063 Norco users. Check the latest studies of Norco.

What is Trimethoprim?

Trimethoprim has active ingredients of trimethoprim. It is often used in urinary tract infection. eHealthMe is studying from 8,213 Trimethoprim users. Check the latest studies of Trimethoprim.



On Jul, 16, 2026

24 people who take Norco and Trimethoprim together, and have interactions are studied.

Norco and Trimethoprim drug interactions.

What are the common drug interactions of Norco and Trimethoprim, by gender? *:

female:

  1. Thyroid disorder (thyroid diseases)
  2. Multiple allergies (allergy to multiple agents)
  3. Constipation
  4. Decreased appetite
  5. Allergic cough
  6. Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
  7. Dizziness
  8. Gastrointestinal haemorrhage (bleeding gastrointestinal tract)
  9. Malaise (a feeling of general discomfort or uneasiness)
  10. Nausea (feeling of having an urge to vomit)

male:

  1. Headache (pain in head)
  2. Acidosis (build-up of carbon dioxide in the blood)
  3. Cough
  4. Delirium (wild excitement)
  5. Dyspnoea (difficult or laboured respiration)
  6. Ear pain
  7. Hypoxia (low oxygen in tissues)
  8. Nausea (feeling of having an urge to vomit)
  9. Peripheral vascular disorder
  10. Abdominal distension

What are the common drug interactions of Norco and Trimethoprim, 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. Abdominal tenderness
  2. Aggression
  3. Body mass index decreased
  4. Cardiac murmur (an heart sound in valve abnormality)
  5. Chest pain
  6. Constipation
  7. Diabetes mellitus (diabetes, caused by a deficiency of the pancreatic hormone insulin)
  8. Escherichia sepsis (bacterial infection by escherichia coli)
  9. Fear of disease
  10. Hiatus hernia (hernia resulting from the protrusion of part of the stomach through the diaphragm)

40-49:

  1. Asthenia (weakness)
  2. Bedridden
  3. Urinary incontinence (inability to control the flow of urine and involuntary urination)
  4. Visual impairment

50-59:

  1. Dehydration (dryness resulting from the removal of water)
  2. Dyspnoea (difficult or laboured respiration)
  3. Ear pain
  4. Headache (pain in head)
  5. Hypoxia (low oxygen in tissues)
  6. Lung transplant rejection (failure of lung transplant)
  7. Nausea (feeling of having an urge to vomit)
  8. Pneumonia staphylococcal (pneumonia staphylococcal infections are usually caused by the organism staphylococcus aureus)
  9. Pyrexia (fever)
  10. Septic shock (shock due to blood infection)

60+:

  1. Asthma
  2. Cellulitis (infection under the skin)
  3. Constipation
  4. Dizziness
  5. Nausea (feeling of having an urge to vomit)
  6. Allergic cough
  7. Asthenia (weakness)
  8. Diarrhoea
  9. Gastritis erosive (a break in the surface layer of the membrane lining the stomach with infection)
  10. Gastrointestinal haemorrhage (bleeding gastrointestinal tract)

What are the existing conditions these people have? *

  1. Immunodeficiency Common Variable: 7 people, 29.17%
  2. Dyspnea (difficult or laboured breathing): 2 people, 8.33%

* Approximation only. Some reports may have incomplete information.

Do you take Norco and Trimethoprim?

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- Predict drug outcomes for up to one year with AI
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Related studies:

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

Browse all drug interactions of Norco and Trimethoprim:

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 Norco:

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 Trimethoprim:

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 Norco 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 Trimethoprim 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

How the study uses the data?

The study uses data from the FDA. It is based on acetaminophen; hydrocodone bitartrate and trimethoprim (the active ingredients of Norco and Trimethoprim, respectively), and Norco and Trimethoprim (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.

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.



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