Macrobid and Increased tendency to bruise - a phase IV clinical study of FDA data

Summary:

Increased tendency to bruise is reported as a side effect among people who take Macrobid (nitrofurantoin; nitrofurantoin, macrocrystalline), especially for people who are female, 60+ old, also take Magnesium, and have Multiple myeloma.

The phase IV clinical study analyzes which people have Increased tendency to bruise when taking Macrobid. It is created by eHealthMe based on reports of 8,335 people who have side effects when taking Macrobid from the FDA, and is updated regularly.

What is Macrobid?

Macrobid has active ingredients of nitrofurantoin; nitrofurantoin, macrocrystalline. It is often used in urinary tract infection. eHealthMe is studying from 9,215 Macrobid users. Check the latest studies of Macrobid.

What is Increased tendency to bruise?

Increased tendency to bruise (increased tendency to injure the underlying soft tissue or bone) is found to be associated with 769 drugs and 813 conditions by eHealthMe. Check the latest studies of Increased tendency to bruise.

On Jul, 16, 2026

8,335 people reported to have side effects when taking Macrobid.
Among them, 16 people (0.19%) have Increased tendency to bruise.

Could Macrobid cause Increased tendency to bruise?

Among these 16 people:

What is the gender of people who have Increased tendency to bruise when taking Macrobid? *

female: 100 %
male: 0.0 %

What is the age of people who have Increased tendency to bruise when taking Macrobid? *

What are other drugs people take besides Macrobid? *

What are other side effects people have besides Increased tendency to bruise? *

Fatigue (feeling of tiredness): 10 people, 62.50%
Dizziness: 7 people, 43.75%
Weight Increased: 4 people, 25.00%
Diarrhea: 4 people, 25.00%
Confusional State: 4 people, 25.00%
Stress And Anxiety: 3 people, 18.75%
High Blood Pressure: 3 people, 18.75%
Weight Decreased: 3 people, 18.75%
Fall: 3 people, 18.75%
Haemorrhagic Diathesis (bleeding tendency): 3 people, 18.75%

What are the existing conditions these people have? *

Multiple Myeloma (cancer of the plasma cells): 3 people, 18.75%
Waldenstrom's Macroglobulinaemia (cancer affects small lymphocytes (white blood cells)): 2 people, 12.50%
Immunodeficiency Common Variable: 2 people, 12.50%
Atrial Fibrillation/flutter (atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles): 2 people, 12.50%
Type 2 Diabetes: 1 person, 6.25%
Transient Ischaemic Attack (a transient episode of neurologic dysfunction caused by ischemia (loss of blood flow)): 1 person, 6.25%
Thrombosis (formation of a blood clot inside a blood vessel): 1 person, 6.25%
Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 1 person, 6.25%
Psoriatic Arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 1 person, 6.25%
Pollakiuria (abnormally frequent passage of relatively small quantities or urine): 1 person, 6.25%

* Approximation only. Some reports may have incomplete information.

Do you take Macrobid and have Increased tendency to bruise?

- Check whether Increased tendency to bruise 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 Macrobid:

Macrobid (9,215 reports)

Increased tendency to bruise treatments and more:

Increased tendency to bruise (11,449 reports)

How severe was Increased tendency to bruise and when was it recovered:

Increased tendency to bruise in Macrobid

Expand to all the drugs that have ingredients of nitrofurantoin; nitrofurantoin, macrocrystalline:

Increased tendency to bruise and drugs with ingredients of nitrofurantoin; nitrofurantoin, macrocrystalline

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 Macrobid:

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 Increased tendency to bruise:

Increased tendency to bruise (769 drugs)

Browse all the conditions that are associated with Increased tendency to bruise:

Increased tendency to bruise (813 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on nitrofurantoin; nitrofurantoin, macrocrystalline (the active ingredients of Macrobid) and Macrobid (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.