Grape and Coumadin drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Grape (grape) and Coumadin (warfarin sodium). Common drug interactions include neuropathy peripheral among females and abdominal pain among males.

The phase IV clinical study analyzes what interactions people have when they take Grape and Coumadin. It is created by eHealthMe based on reports of 17 people who take the same drugs from the FDA, and is updated regularly.

What is Grape?

Grape has active ingredients of grape. eHealthMe is studying from 1,229 Grape users. Check the latest studies of Grape.

What is Coumadin?

Coumadin has active ingredients of warfarin sodium. It is often used in blood clots. eHealthMe is studying from 133,228 Coumadin users. Check the latest studies of Coumadin.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Sep, 02, 2026

17 people who take Grape and Coumadin together, and have interactions are studied.

What are the common drug interactions of Grape and Coumadin, by gender? *:

female:

Neuropathy peripheral (surface nerve damage)
Pain in extremity
Visual impairment
Insomnia (sleeplessness)
Dizziness
Abdominal pain
Actinic keratosis (skin disease due to sun exposure)
Adhesion
Amaurosis fugax (painless transient monocular visual loss)
Angiolipoma (a benign tumour composed chiefly of fat cells)

male:

Abdominal pain
Aspartate aminotransferase increased
Abdominal discomfort
Abdominal distension
Abdominal pain upper
Actinic keratosis (skin disease due to sun exposure)
Adhesion
Adverse drug reaction
Alanine aminotransferase increased
Amaurosis fugax (painless transient monocular visual loss)

What are the common drug interactions of Grape and Coumadin, 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:

Abdominal pain
Actinic keratosis (skin disease due to sun exposure)
Adhesion
Amaurosis fugax (painless transient monocular visual loss)
Angiolipoma (a benign tumour composed chiefly of fat cells)
Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Antiphospholipid antibodies positive
Anxiety
Arthralgia (joint pain)
Aspartate aminotransferase increased

50-59:

Disturbance in attention
Dry skin
Dyspepsia (indigestion)
Dyspnoea (difficult or laboured respiration)
Ejection fraction decreased (systolic heart failure)
Epistaxis (bleed from the nose)
Erythema (redness of the skin)
Extrasystoles
Fatigue (feeling of tiredness)
Feeling hot

60+:

Diarrhoea
Dizziness
Myalgia (muscle pain)
Pain in extremity
Thrombocytopenia (decrease of platelets in blood)
Abdominal discomfort
Abdominal distension
Abdominal pain upper
Actinic keratosis (skin disease due to sun exposure)
Adhesion

What are the existing conditions these people have? *

Pain: 5 people, 29.41%
Oedema (fluid collection in tissue): 5 people, 29.41%
Hypomania (a mild form of mania, marked by elation and hyperactivity): 5 people, 29.41%
Protein S Deficiency: 4 people, 23.53%
Breast Cancer: 3 people, 17.65%
Multiple Myeloma (cancer of the plasma cells): 2 people, 11.76%
Stroke (sudden death of a portion of the brain cells due to a lack of oxygen): 1 person, 5.88%
Prostate Cancer Metastatic: 1 person, 5.88%
Primary Pulmonary Hypertension (primary high blood pressure that affects the arteries in the lungs and the right side of your heart): 1 person, 5.88%
Lymphocytic Leukaemia (a type of cancer in which the bone marrow makes too many lymphocytes): 1 person, 5.88%

* Approximation only. Some reports may have incomplete information.

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