Dynacirc and Duragesic drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Dynacirc (isradipine) and Duragesic (fentanyl). Common drug interactions include dysuria among females and aspergillosis among males.

The phase IV clinical study analyzes what interactions people have when they take Dynacirc and Duragesic. It is created by eHealthMe based on reports of 21 people who take the same drugs from the FDA, and is updated regularly.

What is Dynacirc?

Dynacirc has active ingredients of isradipine. eHealthMe is studying from 975 Dynacirc users. Check the latest studies of Dynacirc.

What is Duragesic?

Duragesic has active ingredients of fentanyl. eHealthMe is studying from 66,597 Duragesic users. Check the latest studies of Duragesic.

On Jul, 18, 2026

21 people who take Dynacirc and Duragesic together, and have interactions are studied.

Dynacirc and Duragesic drug interactions.

What are the common drug interactions of Dynacirc and Duragesic, by gender? *:

female:

Dysuria (painful or difficult urination)
Fatigue (feeling of tiredness)
Metastases to lung (cancer spreads to lung)
Myalgia (muscle pain)
Oedema peripheral (superficial swelling)
Tremor (trembling or shaking movements in one or more parts of your body)
Abdominal discomfort
Dry mouth
Dyspnoea (difficult or laboured respiration)
Stomatitis (inflammation of mucous membrane of mouth)

male:

Aspergillosis (an infection caused by a fungus called aspergillus)
Back pain
Loss of consciousness
Nausea (feeling of having an urge to vomit)
Renal failure acute (rapid kidney dysfunction)
Sepsis (a severe blood infection that can lead to organ failure and death)
Syncope (loss of consciousness with an inability to maintain postural tone)
Unresponsive to stimuli
Waldenstrom's macroglobulinaemia (cancer affects small lymphocytes (white blood cells))
Confusional state

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

n/a

50-59:

Alanine aminotransferase increased
Aspartate aminotransferase increased
Blood alkaline phosphatase increased
Blood bilirubin increased
Gastric cancer (stomach cancer)
Hypertension (high blood pressure)
Linitis plastica

60+:

Dry mouth
Dyspnoea (difficult or laboured respiration)
Hypoaesthesia (reduced sense of touch or sensation)
Impaired healing
Inflammation
Lip ulceration (ulcer of lip)
Mouth ulceration (mouth ulcers)
Osteomyelitis (infection of bone)
Osteosclerosis (an elevation in bone density)
Pain in jaw

What are the existing conditions these people have? *

Pain: 15 people, 71.43%
Metastases To Bone (cancer spreads to bone): 13 people, 61.90%
Breast Cancer: 8 people, 38.10%

* Approximation only. Some reports may have incomplete information.

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