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

Summary:

Drug interactions are reported among people who take Robitussin (guaifenesin) and Faslodex (fulvestrant). Common drug interactions include cough among females.

The phase IV clinical study analyzes what interactions people have when they take Robitussin and Faslodex. It is created by eHealthMe based on reports of 8 people who take the same drugs from the FDA, and is updated regularly.

What is Robitussin?

Robitussin has active ingredients of guaifenesin. eHealthMe is studying from 3,532 Robitussin users. Check the latest studies of Robitussin.

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, 21, 2026

8 people who take Robitussin and Faslodex together, and have interactions are studied.

Robitussin and Faslodex drug interactions.

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

female:

Cough
Blood pressure increased
Alopecia (absence of hair from areas of the body)
Alveolitis (inflammation in the socket of a tooth)
Amnesia (deficit in memory caused by brain damage, disease, or psychological trauma)
Anaemia (lack of blood)
Anxiety
Aortic calcification (aortic calcification sign of heart valve disease)
Arteriosclerosis (thickening and hardening of arteries)
Arthritis (form of joint disorder that involves inflammation of one or more joints)

male:

n/a

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

0-1:

n/a

2-9:

n/a

10-19:

Joint instability (a condition in which the joints aren't sufficiently supported)
Lacunar infarction (a type of stroke)
Left ventricular hypertrophy (the thickening of the myocardium (muscle) of the left ventricle of the heart)
Leukodystrophy (degeneration of the white matter in the brain)
Localised oedema (fluid retention in a particular part of the body)
Lumbar radiculopathy (radicular pain in the low back and legs)
Lymph node palpable
Lymphocyte count decreased
Lymphoedema (localized fluid retention and tissue swelling)
Mass

20-29:

n/a

30-39:

n/a

40-49:

n/a

50-59:

Cough
Arthralgia (joint pain)
Blood pressure increased
Bronchiectasis (abnormal widening of the bronchi or their branches, causing a risk of infection)
Lymphoedema (localized fluid retention and tissue swelling)
Nail discolouration (change in nail colour)
Neoplasm progression (growth of tumour)
Pulmonary embolism (blockage of the main artery of the lung)
Renal cell carcinoma (a kidney cancer)
Rib fracture

60+:

Blood pressure increased
Bone cancer metastatic
Malignant neoplasm progression (cancer tumour came back)
Metastases to bone (cancer spreads to bone)
Neutropenia (an abnormally low number of neutrophils)
Pancytopenia (medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets)
Pulmonary embolism (blockage of the main artery of the lung)
Renal cell carcinoma (a kidney cancer)
Rib fracture
Bronchiectasis (abnormal widening of the bronchi or their branches, causing a risk of infection)

* Approximation only. Some reports may have incomplete information.

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