Zithromax and Nitrofurantoin drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Zithromax (azithromycin) and Nitrofurantoin (nitrofurantoin, macrocrystalline). Common drug interactions include dysphonia among females and anxiety among males.

The phase IV clinical study analyzes what interactions people have when they take Zithromax and Nitrofurantoin. It is created by eHealthMe based on reports of 95 people who take the same drugs from the FDA, and is updated regularly.

What is Zithromax?

Zithromax has active ingredients of azithromycin. It is often used in sinusitis. eHealthMe is studying from 35,525 Zithromax users. Check the latest studies of Zithromax.

What is Nitrofurantoin?

Nitrofurantoin has active ingredients of nitrofurantoin, macrocrystalline. It is often used in urinary tract infection. eHealthMe is studying from 4,837 Nitrofurantoin users. Check the latest studies of Nitrofurantoin.



On Jul, 15, 2026

95 people who take Zithromax and Nitrofurantoin together, and have interactions are studied.

Zithromax and Nitrofurantoin drug interactions.

What are the common drug interactions of Zithromax and Nitrofurantoin, by gender? *:

female:

  1. Dysphonia (speech disorder attributable to a disorder of phonation)
  2. Osteoarthritis (a joint disease caused by cartilage loss in a joint)
  3. Myalgia (muscle pain)
  4. Osteomyelitis (infection of bone)
  5. Cough
  6. Dizziness
  7. Emotional distress
  8. Malaise (a feeling of general discomfort or uneasiness)
  9. Anhedonia (inability to experience pleasure from activities usually found enjoyable)
  10. Oropharyngeal pain

male:

  1. Anxiety
  2. Dyspnoea (difficult or laboured respiration)
  3. Tremor (trembling or shaking movements in one or more parts of your body)
  4. Vomiting
  5. Akathisia (a movement disorder characterized by a feeling of inner restlessness)
  6. Anaemia (lack of blood)
  7. Balance disorder
  8. Cellulitis (infection under the skin)
  9. Convulsion (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled shaking of the body)
  10. Diabetes mellitus inadequate control

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

0-1:

n/a

2-9:

  1. Scar
  2. Anaemia (lack of blood)
  3. Angiopathy (generic term for a disease of the blood vessels)
  4. Anhedonia (inability to experience pleasure from activities usually found enjoyable)
  5. Anxiety
  6. Aortic arteriosclerosis (hardening of the aortic arteries)
  7. Arthropathy
  8. Back pain
  9. Bone disorder
  10. Bone loss

10-19:

  1. Abdominal distension
  2. Abdominal pain upper
  3. Aphagia (inability or refusal to swallow)
  4. Biliary colic
  5. Cholecystitis chronic (long lasting infection of gallbladder)
  6. Cholesterosis (abnormal deposition of cholesterol in tissues)
  7. Constipation
  8. Dehydration (dryness resulting from the removal of water)
  9. Diarrhoea
  10. Eructation (release of gas from the digestive tract)

20-29:

  1. Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)
  2. Anxiety
  3. Pulmonary embolism (blockage of the main artery of the lung)
  4. Abdominal distension
  5. Abdominal pain
  6. Abdominal pain upper
  7. Abdominal tenderness
  8. Anhedonia (inability to experience pleasure from activities usually found enjoyable)
  9. Chest pain
  10. Cholecystitis acute (rapid infection of gallbladder)

30-39:

  1. Anxiety
  2. Pain
  3. Discomfort
  4. Fear
  5. Oedema peripheral (superficial swelling)
  6. Pain in extremity
  7. Thrombophlebitis superficial (swelling (inflammation) of a superficial vein caused by a blood clot)
  8. Venous injury
  9. Venous insufficiency (poor circulation of blood caused by damaged or enlarged veins)
  10. Anxiety disorder

40-49:

  1. Blood cholesterol increased
  2. Cellulitis (infection under the skin)
  3. Diabetes mellitus (diabetes, caused by a deficiency of the pancreatic hormone insulin)
  4. Ear disorder
  5. Ear infection
  6. Eye pain
  7. Hyperlipidaemia (presence of excess lipids in the blood)
  8. Major depression (a mood state that goes well beyond temporarily feeling sad or blue. it is a serious medical illness that affects one's thoughts, feelings)
  9. Nasopharyngitis (inflammation of the nasopharynx)
  10. Obesity (having too much body fat)

50-59:

  1. Bone pain
  2. Cholelithiasis (the presence or formation of gallstones in the gallbladder or bile ducts)
  3. Dizziness
  4. Vomiting
  5. Abdominal pain
  6. Abscess (pus)
  7. Anaemia (lack of blood)
  8. Asthma
  9. Chills (felling of cold)
  10. Chronic obstructive pulmonary disease (a progressive disease that makes it hard to breathe)

60+:

  1. Fall
  2. Anxiety
  3. Myalgia (muscle pain)
  4. Dyspnoea (difficult or laboured respiration)
  5. Back pain
  6. Diarrhoea
  7. Anhedonia (inability to experience pleasure from activities usually found enjoyable)
  8. Cough
  9. Oropharyngeal pain
  10. Palpitations (feelings or sensations that your heart is pounding or racing)

What are the existing conditions these people have? *

  1. Osteoporosis (bones weak and more likely to break): 28 people, 29.47%
  2. Pain: 14 people, 14.74%
  3. Birth Control: 10 people, 10.53%
  4. Muscle Spasms (muscle contraction): 8 people, 8.42%
  5. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 6 people, 6.32%
  6. Depression: 6 people, 6.32%
  7. Stress And Anxiety: 5 people, 5.26%

* Approximation only. Some reports may have incomplete information.

Do you take Zithromax and Nitrofurantoin?

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Related studies:

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

Browse all drug interactions of Zithromax and Nitrofurantoin:

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 Zithromax:

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 Nitrofurantoin:

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 Zithromax 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 Nitrofurantoin 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 azithromycin and nitrofurantoin, macrocrystalline (the active ingredients of Zithromax and Nitrofurantoin, respectively), and Zithromax and Nitrofurantoin (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.

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