Zelnorm and Tarceva drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Zelnorm (tegaserod maleate) and Tarceva (erlotinib hydrochloride). Common drug interactions include anaemia among females.

The phase IV clinical study analyzes what interactions people have when they take Zelnorm and Tarceva. It is created by eHealthMe based on reports of 13 people who take the same drugs from the FDA, and is updated regularly.

What is Zelnorm?

Zelnorm has active ingredients of tegaserod maleate. eHealthMe is studying from 7,261 Zelnorm users. Check the latest studies of Zelnorm.

What is Tarceva?

Tarceva has active ingredients of erlotinib hydrochloride. It is often used in lung cancer. eHealthMe is studying from 31,036 Tarceva users. Check the latest studies of Tarceva.



On Jul, 24, 2026

13 people who take Zelnorm and Tarceva together, and have interactions are studied.

Zelnorm and Tarceva drug interactions.

What are the common drug interactions of Zelnorm and Tarceva, by gender? *:

female:

  1. Anaemia (lack of blood)
  2. Metastases to bone (cancer spreads to bone)
  3. Diarrhoea
  4. Disability
  5. Fall
  6. General physical health deterioration (weak health status)
  7. Headache (pain in head)
  8. Hip fracture
  9. Malaise (a feeling of general discomfort or uneasiness)
  10. Oesophageal ulcer (ulcer of oesophagus)

male:

n/a

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

  1. Oedema mucosal (swelling of mucous membrane)
  2. Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
  3. Extradural haematoma (traumatic brain injury-collection of blood in the 'potential' space between the skull and the outer protective)
  4. Heart rate irregular
  5. Metastases to lymph nodes (cancer spreads to lymph node)
  6. Odynophagia (painful swallowing, in the mouth (oropharynx) or oesophagus)
  7. Osteonecrosis (death of bone)
  8. Anaemia (lack of blood)
  9. Anxiety
  10. Arthralgia (joint pain)

50-59:

  1. Adrenal mass
  2. Anaemia (lack of blood)
  3. Lactobacillus infection
  4. Metastases to bone (cancer spreads to bone)
  5. Musculoskeletal chest pain (pain in chest muscle or nerve or bones)
  6. Pleuritic pain
  7. Pyrexia (fever)
  8. Renal failure acute (rapid kidney dysfunction)
  9. Aphagia (inability or refusal to swallow)
  10. Blood creatinine increased

60+:

n/a

What are the existing conditions these people have? *

  1. Pain: 5 people, 38.46%
  2. Breast Cancer Metastatic: 5 people, 38.46%
  3. Reflux Oesophagitis (an oesophageal mucosal injury that occurs of gastric contents into the oesophagus): 3 people, 23.08%
  4. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 2 people, 15.38%
  5. Pancreatic Carcinoma (pancreatic cancer): 1 person, 7.69%
  6. Lung Neoplasm Malignant (cancer tumour of lung): 1 person, 7.69%

* Approximation only. Some reports may have incomplete information.

Do you take Zelnorm and Tarceva?

- Personalize this study to your gender, age, symptoms and drugs
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously



Related studies:

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

Browse all drug interactions of Zelnorm and Tarceva:

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 Zelnorm:

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 Tarceva:

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 Zelnorm 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 Tarceva 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 tegaserod maleate and erlotinib hydrochloride (the active ingredients of Zelnorm and Tarceva, respectively), and Zelnorm and Tarceva (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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