Actiq and Metronidazole drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Actiq (fentanyl citrate) and Metronidazole (metronidazole). Common drug interactions include headache among females and blood pressure systolic increased among males.

The phase IV clinical study analyzes what interactions people have when they take Actiq and Metronidazole. It is created by eHealthMe based on reports of 16 people who take the same drugs from the FDA, and is updated regularly.

What is Actiq?

Actiq has active ingredients of fentanyl citrate. It is often used in pain. eHealthMe is studying from 27,583 Actiq users. Check the latest studies of Actiq.

What is Metronidazole?

Metronidazole has active ingredients of metronidazole. It is often used in vaginitis bacterial. eHealthMe is studying from 59,578 Metronidazole users. Check the latest studies of Metronidazole.



On Jul, 04, 2026

16 people who take Actiq and Metronidazole together, and have interactions are studied.

Actiq and Metronidazole drug interactions.

What are the common drug interactions of Actiq and Metronidazole, by gender? *:

female:

  1. Headache (pain in head)
  2. Muscular weakness (muscle weakness)
  3. Abscess oral (abscess in the mouth)
  4. Anaemia (lack of blood)
  5. Arteriosclerosis (thickening and hardening of arteries)
  6. Bladder prolapse (bulging of one or more of the pelvic organs into the vagina)
  7. Bone disorder
  8. Bone fistula
  9. Cardiac failure congestive
  10. Carotid artery stenosis (narrowing of carotid artery)

male:

  1. Blood pressure systolic increased
  2. Clostridium colitis (inflammation of colon by clostridium difficile bacteria infection)
  3. Small intestinal obstruction (blockage in small intestine)
  4. Staphylococcal infection (an infection with staphylococcus bacteria)
  5. Tachycardia (a heart rate that exceeds the range of 100 beats/min)
  6. Culture positive
  7. Dehydration (dryness resulting from the removal of water)
  8. Electrolyte imbalance
  9. Erythema (redness of the skin)
  10. Escherichia infection (bacterial infection by escherichia coli)

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

0-1:

n/a

2-9:

n/a

10-19:

  1. Erythema (redness of the skin)
  2. Labile blood pressure (wildly fluctuating blood pressure)
  3. Tachycardia (a heart rate that exceeds the range of 100 beats/min)

20-29:

n/a

30-39:

  1. Blood pressure systolic increased
  2. Clostridium colitis (inflammation of colon by clostridium difficile bacteria infection)
  3. Culture positive
  4. Dehydration (dryness resulting from the removal of water)
  5. Electrolyte imbalance
  6. Escherichia infection (bacterial infection by escherichia coli)
  7. Pathogen resistance
  8. Sepsis (a severe blood infection that can lead to organ failure and death)
  9. Small intestinal obstruction (blockage in small intestine)
  10. Staphylococcal infection (an infection with staphylococcus bacteria)

40-49:

n/a

50-59:

n/a

60+:

  1. Abscess oral (abscess in the mouth)
  2. Anaemia (lack of blood)
  3. Chronic inflammatory demyelinating polyradiculoneuropathy (long lasting infection of nerves outside brain and spinal cord)
  4. Colostomy
  5. Contusion (a type of hematoma of tissue in which capillaries)
  6. Deafness
  7. Depression
  8. Device failure
  9. Diarrhoea
  10. Dysaesthesia (abnormal sensation)

What are the existing conditions these people have? *

  1. Colorectal Cancer Metastatic (cancer of colon and rectal spreads to other parts): 2 people, 12.50%
  2. Short-Bowel Syndrome (a condition in which the body cannot absorb enough fluids and nutrients because part of the small intestine is missing): 1 person, 6.25%
  3. Psychotic Disorder: 1 person, 6.25%
  4. Metastases To Bone (cancer spreads to bone): 1 person, 6.25%
  5. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 6.25%
  6. Depression: 1 person, 6.25%

* Approximation only. Some reports may have incomplete information.

Do you take Actiq and Metronidazole?

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- Predict drug outcomes for up to one year with AI
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Related studies:

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

Browse all drug interactions of Actiq and Metronidazole:

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 Actiq:

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 Metronidazole:

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 Actiq 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 Metronidazole 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 fentanyl citrate and metronidazole (the active ingredients of Actiq and Metronidazole, respectively), and Actiq and Metronidazole (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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