Metrolotion and Macrobid drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Metrolotion (metronidazole) and Macrobid (nitrofurantoin; nitrofurantoin, macrocrystalline). Common drug interactions include aortic arteriosclerosis among females and scar among males.

The phase IV clinical study analyzes what interactions people have when they take Metrolotion and Macrobid. 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 Metrolotion?

Metrolotion has active ingredients of metronidazole. eHealthMe is studying from 127 Metrolotion users. Check the latest studies of Metrolotion.

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.



On Jul, 08, 2026

24 people who take Metrolotion and Macrobid together, and have interactions are studied.

Metrolotion and Macrobid drug interactions.

What are the common drug interactions of Metrolotion and Macrobid, by gender? *:

female:

  1. Aortic arteriosclerosis (hardening of the aortic arteries)
  2. Diarrhoea
  3. Discomfort
  4. Dry mouth
  5. Dysphonia (speech disorder attributable to a disorder of phonation)
  6. Dyspnoea (difficult or laboured respiration)
  7. Emotional distress
  8. Fall
  9. Feeling jittery
  10. Fractured sacrum

male:

  1. Scar
  2. Acute sinusitis
  3. Bone loss
  4. Candidiasis (candidiasis or thrush is a fungal infection)
  5. Cellulitis (infection under the skin)
  6. Chronic obstructive pulmonary disease (a progressive disease that makes it hard to breathe)
  7. Chronic sinusitis (long lasting inflammation of the paranasal sinuses)
  8. Constipation
  9. Contusion (a type of hematoma of tissue in which capillaries)
  10. Decreased appetite

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

0-1:

n/a

2-9:

  1. Arthropathy
  2. Back pain
  3. Bone disorder
  4. Bone loss
  5. Candidiasis (candidiasis or thrush is a fungal infection)
  6. Cellulitis (infection under the skin)
  7. Chronic obstructive pulmonary disease (a progressive disease that makes it hard to breathe)
  8. Chronic sinusitis (long lasting inflammation of the paranasal sinuses)
  9. Constipation
  10. Contusion (a type of hematoma of tissue in which capillaries)

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

n/a

50-59:

n/a

60+:

  1. Anhedonia (inability to experience pleasure from activities usually found enjoyable)
  2. Anxiety
  3. Feeling jittery
  4. Fractured sacrum
  5. Gingival bleeding (bleeding gums)
  6. Heart rate increased
  7. Heart rate irregular
  8. Hypophagia (reduced food intake)
  9. Influenza
  10. Musculoskeletal pain (pain affects the bones, muscles, ligaments, tendons, and nerves)

What are the existing conditions these people have? *

  1. Osteoporosis (bones weak and more likely to break): 24 people, 100.00%

* Approximation only. Some reports may have incomplete information.

Do you take Metrolotion and Macrobid?

- 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 Metrolotion and 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

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 Metrolotion:

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 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 interactions between Metrolotion 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 Macrobid 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 metronidazole and nitrofurantoin; nitrofurantoin, macrocrystalline (the active ingredients of Metrolotion and Macrobid, respectively), and Metrolotion and Macrobid (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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