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

Summary:

Drug interactions are reported among people who take Faslodex (fulvestrant) and Effexor xr (venlafaxine hydrochloride). Common drug interactions include metastases to bone among females.

The phase IV clinical study analyzes what interactions people have when they take Faslodex and Effexor xr. It is created by eHealthMe based on reports of 92 people who take the same drugs from the FDA, and is updated regularly.

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.

What is Effexor xr?

Effexor xr has active ingredients of venlafaxine hydrochloride. It is often used in depression. eHealthMe is studying from 35,233 Effexor xr users. Check the latest studies of Effexor xr.

On Jul, 10, 2026

92 people who take Faslodex and Effexor xr together, and have interactions are studied.

Faslodex and Effexor xr drug interactions.

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

female:

Metastases to bone (cancer spreads to bone)
Dyspnoea (difficult or laboured respiration)
Night sweats (sweating in night)
Osteonecrosis of jaw (death of bone of jaw)
Osteoarthritis (a joint disease caused by cartilage loss in a joint)
Staphylococcal infection (an infection with staphylococcus bacteria)
Constipation
Urinary tract infection
Pain
Hypoaesthesia (reduced sense of touch or sensation)

male:

n/a

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

Adverse event
Cellulitis (infection under the skin)
Dizziness
Drug hypersensitivity
Malaise (a feeling of general discomfort or uneasiness)
Vomiting
White blood cell count decreased
Alopecia (absence of hair from areas of the body)
Anaemia (lack of blood)
Atelectasis (partial or complete collapse of the lung)

40-49:

Gingival disorder (gum disease)
Impaired healing
Osteomyelitis (infection of bone)
Tooth extraction
Anaemia (lack of blood)
Bone lesion (bone with abnormalities. bone lesions can result from growth formations, infections, or injuries)
Pain

50-59:

Hypoaesthesia (reduced sense of touch or sensation)
Hypoaesthesia oral (reduced sense of touch or sensation in mouth)
Impaired healing
Ingrowing nail
Injury
Intervertebral disc protrusion (spinal disc protrusion)
Lumbar radiculopathy (radicular pain in the low back and legs)
Mitral valve prolapse (heart's mitral valve doesn't work well)
Muscular weakness (muscle weakness)
Neuralgia (pain in one or more nerves)

60+:

Fatigue (feeling of tiredness)
Metastases to bone (cancer spreads to bone)
Arthralgia (joint pain)
Back pain
Chest pain
Chronic obstructive pulmonary disease (a progressive disease that makes it hard to breathe)
Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)
Depressive symptom
Device failure
Device related infection

What are the existing conditions these people have? *

Breast Cancer: 33 people, 35.87%
Hypercalcaemia (elevated calcium (ca+) level in the blood): 22 people, 23.91%
Metastases To Bone (cancer spreads to bone): 21 people, 22.83%
Breast Cancer Female: 17 people, 18.48%
Pain: 5 people, 5.43%

* Approximation only. Some reports may have incomplete information.

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