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

Summary:

Drug interactions are reported among people who take Actiq (fentanyl citrate) and Faslodex (fulvestrant). Common drug interactions include neck pain among females and rash among males.

The phase IV clinical study analyzes what interactions people have when they take Actiq and Faslodex. It is created by eHealthMe based on reports of 29 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 Faslodex?

Faslodex has active ingredients of fulvestrant. It is often used in breast cancer metastatic. eHealthMe is studying from 19,255 Faslodex users. Check the latest studies of Faslodex.

On Jul, 08, 2026

29 people who take Actiq and Faslodex together, and have interactions are studied.

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

female:

Neck pain
Pancoast's tumour (lungs tumour)
Pancytopenia (medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets)
Pericardial effusion (fluid around the heart)
Sensitivity of teeth
Spinal osteoarthritis (joint cartilage loss in spine)
Tooth abscess (pus formation in tooth)
Abdominal mass (localized enlargement or swelling in the human abdomen)
Atelectasis (partial or complete collapse of the lung)
Bone pain

male:

Rash
Abdominal pain
Cardiac tamponade (fluid accumulates in heart covering)
Cardiomegaly (increased size of heart than normal)
Cardiopulmonary failure (cessation of normal circulation of the blood due to failure of the heart to contract)
Cervicitis (inflammation of the uterine cervix)
Chronic obstructive pulmonary disease (a progressive disease that makes it hard to breathe)
Colitis (inflammation of colon)
Compression fracture (fracture due to pressure caused by injury)
Constipation

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

0-1:

n/a

2-9:

n/a

10-19:

Abdominal distension
Abdominal mass (localized enlargement or swelling in the human abdomen)
Anaemia (lack of blood)
Anxiety
Aortic arteriosclerosis (hardening of the aortic arteries)
Aortic calcification (aortic calcification sign of heart valve disease)
Arthralgia (joint pain)
Ascites (accumulation of fluid in the abdominal cavity)
Atelectasis (partial or complete collapse of the lung)
Back pain

20-29:

n/a

30-39:

n/a

40-49:

Pain in jaw
Pancoast's tumour (lungs tumour)
Pancytopenia (medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets)
Sensitivity of teeth
Spinal osteoarthritis (joint cartilage loss in spine)
Tooth abscess (pus formation in tooth)
Vomiting
Pericardial effusion (fluid around the heart)
Abdominal mass (localized enlargement or swelling in the human abdomen)
Atelectasis (partial or complete collapse of the lung)

50-59:

Drug administration error
Gait disturbance
Hepatotoxicity (chemical-driven liver damage)
Muscular weakness (muscle weakness)
Nausea (feeling of having an urge to vomit)
Vomiting

60+:

Rash
Abdominal pain
Cardiac tamponade (fluid accumulates in heart covering)
Cardiomegaly (increased size of heart than normal)
Cardiopulmonary failure (cessation of normal circulation of the blood due to failure of the heart to contract)
Cervicitis (inflammation of the uterine cervix)
Chronic obstructive pulmonary disease (a progressive disease that makes it hard to breathe)
Colitis (inflammation of colon)
Compression fracture (fracture due to pressure caused by injury)
Constipation

What are the existing conditions these people have? *

Metastases To Bone (cancer spreads to bone): 24 people, 82.76%
Depression: 11 people, 37.93%
Metastases To Bone Marrow (cancer spreads to bone marrow): 6 people, 20.69%
Deep Venous Thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis): 3 people, 10.34%
Breast Cancer: 3 people, 10.34%
Aseptic Necrosis (the death of bone tissue due to a lack of blood supply): 3 people, 10.34%
High Blood Pressure: 2 people, 6.90%

* Approximation only. Some reports may have incomplete information.

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