Risperdal and Fentanyl-100 drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Risperdal (risperidone) and Fentanyl-100 (fentanyl). Common drug interactions include urinary tract infection among females and delayed recovery from anaesthesia among males.

The phase IV clinical study analyzes what interactions people have when they take Risperdal and Fentanyl-100. It is created by eHealthMe based on reports of 19 people who take the same drugs from the FDA, and is updated regularly.

What is Risperdal?

Risperdal has active ingredients of risperidone. It is often used in bipolar disorder. eHealthMe is studying from 127,729 Risperdal users. Check the latest studies of Risperdal.

What is Fentanyl-100?

Fentanyl-100 has active ingredients of fentanyl. It is often used in pain. eHealthMe is studying from 7,047 Fentanyl-100 users. Check the latest studies of Fentanyl-100.

On Jul, 25, 2026

19 people who take Risperdal and Fentanyl-100 together, and have interactions are studied.

Risperdal and Fentanyl-100 drug interactions.

What are the common drug interactions of Risperdal and Fentanyl-100, by gender? *:

female:

Urinary tract infection
Infected skin ulcer
Depression
Neutrophil count increased (excess than normal number of neutrophil a type of blood cell)
Pneumonia aspiration (bronchopneumonia that develops due to the entrance of foreign materials into the bronchial tree)
Disorientation (disability in which the senses of time, direction, and recognition of people and places)
Disturbance in attention
Dysarthria (speech disorder)
Fatigue (feeling of tiredness)
Headache (pain in head)

male:

Delayed recovery from anaesthesia
Depressed level of consciousness
Neonatal asphyxia (a condition in which an extreme decrease in the concentration of oxygen in the body accompanied by an increase in the concentration of carbon dioxide in neonate)
Abdominal pain
Amnesia (deficit in memory caused by brain damage, disease, or psychological trauma)
Anaemia (lack of blood)
Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Anxiety
Aortic arteriosclerosis (hardening of the aortic arteries)
Arthritis (form of joint disorder that involves inflammation of one or more joints)

What are the common drug interactions of Risperdal and Fentanyl-100, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

Drug rash with eosinophilia and systemic symptoms (adverse drug reactions with rash)
Lymphocyte stimulation test positive
Pyrexia (fever)
Streptococcal infection

20-29:

n/a

30-39:

Fatigue (feeling of tiredness)
Headache (pain in head)
Nausea (feeling of having an urge to vomit)
Pancreatic pseudocyst (collection of tissue and fluids that forms on pancreas)
Pancreatitis chronic (chronic inflammation of pancreas)

40-49:

Cytomegalovirus infection
Urinary tract infection
Infected skin ulcer
Depression
Neutrophil count increased (excess than normal number of neutrophil a type of blood cell)
Ileus (a painful obstruction of the ileum or other part of the intestine)
Ovarian cancer recurrent (reoccurrence of ovary cancer)
Pyelonephritis (inflammation of kidney caused by bacteria)
White blood cell count decreased
Calciphylaxis (is a syndrome with vascular calcium accumulation)

50-59:

Overdose

60+:

Delayed recovery from anaesthesia
Depressed level of consciousness
Sedation
Pneumonia aspiration (bronchopneumonia that develops due to the entrance of foreign materials into the bronchial tree)
Interstitial lung disease
Toxic epidermal necrolysis (a rare, life-threatening skin condition that is usually caused by a reaction to drugs causes wide spread skin destruction)

What are the existing conditions these people have? *

Constipation: 7 people, 36.84%
Insomnia (sleeplessness): 4 people, 21.05%
High Blood Pressure: 4 people, 21.05%
Hyperuricaemia (level of uric acid in the blood that is abnormally high): 4 people, 21.05%
Haemorrhoids (a swollen vein or group of veins in the region of the anus): 3 people, 15.79%
Agitation (state of anxiety or nervous excitement): 3 people, 15.79%
Castleman's Disease (a disease of lymph nodes and related tissues): 3 people, 15.79%
Glaucoma (increased fluid pressure in the eye with vision loss): 3 people, 15.79%
Acute Kidney Failure: 3 people, 15.79%
Anaesthesia: 2 people, 10.53%

* Approximation only. Some reports may have incomplete information.

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