Sulfamethoxazole and Parosmia - a phase IV clinical study of FDA data

Summary:

Parosmia is reported as a side effect among people who take Sulfamethoxazole (sulfamethoxazole), especially for people who are female, 40-49 old, also take Pantoprazole, and have Bacterial infection.

The phase IV clinical study analyzes which people have Parosmia when taking Sulfamethoxazole. It is created by eHealthMe based on reports of 13,142 people who have side effects when taking Sulfamethoxazole from the FDA, and is updated regularly.

What is Sulfamethoxazole?

Sulfamethoxazole has active ingredients of sulfamethoxazole. It is often used in urinary tract infection. eHealthMe is studying from 13,360 Sulfamethoxazole users. Check the latest studies of Sulfamethoxazole.

What is Parosmia?

Parosmia (distortion of the sense of smell, as in smelling odours that are not present) is found to be associated with 699 drugs and 763 conditions by eHealthMe. Check the latest studies of Parosmia.



On Jul, 07, 2026

13,142 people reported to have side effects when taking Sulfamethoxazole.
Among them, 11 people (0.08%) have Parosmia.

Could Sulfamethoxazole cause Parosmia?

Among these 11 people:

What is the gender of people who have Parosmia when taking Sulfamethoxazole? *

  • female: 90.91 %
  • male: 9.09 %

What is the age of people who have Parosmia when taking Sulfamethoxazole? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 0.0 %
  • 40-49: 88.89 %
  • 50-59: 0.0 %
  • 60+: 11.11 %

What are other drugs people take besides Sulfamethoxazole? *

  1. Pantoprazole: 9 people, 81.82%
  2. Ciprofloxacin: 3 people, 27.27%
  3. Revlimid: 2 people, 18.18%
  4. Cefuroxime Axetil: 2 people, 18.18%
  5. Prednisone: 2 people, 18.18%
  6. Cefuroxime: 2 people, 18.18%
  7. Olanzapine: 2 people, 18.18%
  8. Levofloxacin: 2 people, 18.18%
  9. Aripiprazole: 2 people, 18.18%
  10. Trimethoprim: 2 people, 18.18%

What are other side effects people have besides Parosmia? *

  1. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 9 people, 81.82%
  2. Diarrhea: 9 people, 81.82%
  3. Indigestion: 9 people, 81.82%
  4. Breath Odor: 8 people, 72.73%
  5. Fever: 8 people, 72.73%
  6. Oral Discomfort (pain or irritation in mouth): 8 people, 72.73%
  7. Bacterial Test Positive: 8 people, 72.73%
  8. Peritonitis (inflammation of the peritoneum, the thin tissue that lines the inner wall of the abdomen and covers most of the abdominal organs): 8 people, 72.73%
  9. Pseudomembranous Colitis (antibiotic-associated diarrhoea (aad), is an infection of the colon): 8 people, 72.73%
  10. Drug Ineffective: 8 people, 72.73%

What are the existing conditions these people have? *

  1. Leukocytosis (increased white blood cells): 8 people, 72.73%
  2. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 8 people, 72.73%
  3. Diarrhea: 8 people, 72.73%
  4. Bipolar Disorder (mood disorder): 8 people, 72.73%
  5. Bacterial Test Positive: 8 people, 72.73%
  6. Bacterial Infection: 8 people, 72.73%
  7. Reflux Gastritis (a condition in which the lining of a person's stomach becomes inflamed as a result of exposure to bile): 7 people, 63.64%
  8. Abdominal Pain: 7 people, 63.64%
  9. Bacteriuria (presence of bacteria in urine): 6 people, 54.55%
  10. Trimethylaminuria (trimethylamine builds up in the body of patients with trimethylaminuria. the trimethylamine gets released in the person's sweat, urine, reproductive fluids, and breath, giving off a strong fishy or body odour): 4 people, 36.36%

* Approximation only. Some reports may have incomplete information.

Do you take Sulfamethoxazole and have Parosmia?

- Check whether Parosmia is associated with a drug or a condition
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously



Related studies:

Effectiveness of, long term effects of, and alternative drugs to Sulfamethoxazole:

Parosmia treatments and more:

How severe was Parosmia and when was it recovered:

Expand to all the drugs that have ingredients of sulfamethoxazole:

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 Sulfamethoxazole:

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 the drugs that are associated with Parosmia:

Browse all the conditions that are associated with Parosmia:


How the study uses the data?

The study uses data from the FDA. It is based on sulfamethoxazole (the active ingredients of Sulfamethoxazole) and Sulfamethoxazole (the brand name). 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.



Recent studies on eHealthMe: