Fentora and Clonazepam drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Fentora (fentanyl citrate) and Clonazepam (clonazepam). Common drug interactions include paraesthesia among females and drug dependence among males.

The phase IV clinical study analyzes what interactions people have when they take Fentora and Clonazepam. It is created by eHealthMe based on reports of 40 people who take the same drugs from the FDA, and is updated regularly.

What is Fentora?

Fentora has active ingredients of fentanyl citrate. eHealthMe is studying from 26,490 Fentora users. Check the latest studies of Fentora.

What is Clonazepam?

Clonazepam has active ingredients of clonazepam. It is often used in stress and anxiety. eHealthMe is studying from 146,270 Clonazepam users. Check the latest studies of Clonazepam.

On Jul, 19, 2026

40 people who take Fentora and Clonazepam together, and have interactions are studied.

Fentora and Clonazepam drug interactions.

What are the common drug interactions of Fentora and Clonazepam, by gender? *:

female:

Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect)
Paralysis
Ph body fluid
Pharyngeal oedema (abnormal accumulation of fluid in the cavities and intercellular spaces of the pharyngeal)
Polyarthritis (arthritis which involves 5 or more joints simultaneously)
Post laminectomy syndrome
Pulmonary oedema (fluid accumulation in the lungs)
Pupil fixed
Drug ineffective
Loss of consciousness

male:

Drug dependence
Abdominal pain upper
Emotional distress
Fatigue (feeling of tiredness)
International normalised ratio increased
Muscle spasms (muscle contraction)
Pain
Pain in extremity
Pancytopenia (medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets)
Pneumonia

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Constipation
Nasopharyngitis (inflammation of the nasopharynx)
Upper-airway cough syndrome

30-39:

Atrial fibrillation (fibrillation of the muscles of the atria of the heart)
Juvenile myoclonic epilepsy (childhood epilepsy occurring early in morning affecting 12 to 18 years)
Loss of consciousness
Heart rate increased
Hospitalisation
Cardiac arrest
Hypopnoea (decrease in the breathing rate)
Stomatitis (inflammation of mucous membrane of mouth)
Upper respiratory tract infection
Blood pressure increased

40-49:

Abdominal pain upper
Abnormal dreams
Anorexia (eating disorder characterized by immoderate food restriction and irrational fear of gaining weight)
Convulsion (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled shaking of the body)
Delirium tremens (a psychotic condition typical of withdrawal in chronic alcoholics)
Diarrhoea
Drug dependence
Drug withdrawal syndrome (interfere with normal social, occupational, or other functioning. are not due to another medical condition, drug use, or discontinuation)
Dyspnoea (difficult or laboured respiration)
Fatigue (feeling of tiredness)

50-59:

Abdominal distension
Amnesia (deficit in memory caused by brain damage, disease, or psychological trauma)
Arthralgia (joint pain)
Asthenia (weakness)
Atrioventricular block first degree (heart block first degree)
Atrophy (wasting away of a part of the body)
Back pain
Blood pressure increased
Bursitis (inflammation of a bursa, typically one in the knee, elbow, or shoulder)
Chills (felling of cold)

60+:

Drug ineffective
Hyperhidrosis (abnormally increased sweating)
International normalised ratio increased
Palpitations (feelings or sensations that your heart is pounding or racing)
Pancytopenia (medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets)
Pneumonia
Renal failure (kidney dysfunction)
Serotonin syndrome (occurs when two drugs that affect the body's level of serotonin are taken together at the same time)

What are the existing conditions these people have? *

Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 18 people, 45.00%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 17 people, 42.50%
Pain: 5 people, 12.50%
Cystitis Interstitial (unknown cause characterized by bladder pain): 4 people, 10.00%
Complex Regional Pain Syndrome (long lasting pain condition most often affecting one of the limbs (arms, legs, hands, or feet)): 3 people, 7.50%
Breakthrough Pain: 3 people, 7.50%
Migraine (headache): 2 people, 5.00%
Intervertebral Disc Degeneration (spinal disc degeneration): 2 people, 5.00%
High Blood Pressure: 2 people, 5.00%
Depression: 2 people, 5.00%

* Approximation only. Some reports may have incomplete information.

Do you take Fentora and Clonazepam?

- 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