Cinnamon and Tea drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Cinnamon (cassia cinnamon) and Tea (black tea). Common drug interactions include diarrhoea among females and rash among males.

The phase IV clinical study analyzes what interactions people have when they take Cinnamon and Tea. It is created by eHealthMe based on reports of 27 people who take the same drugs from the FDA, and is updated regularly.

What is Cinnamon?

Cinnamon has active ingredients of cassia cinnamon. It is often used in diabetes. eHealthMe is studying from 4,110 Cinnamon users. Check the latest studies of Cinnamon.

What is Tea?

Tea has active ingredients of black tea. eHealthMe is studying from 509 Tea users. Check the latest studies of Tea.

On Aug, 06, 2026

27 people who take Cinnamon and Tea together, and have interactions are studied.

What are the common drug interactions of Cinnamon and Tea, by gender? *:

female:

Diarrhoea
Fall
Blood pressure increased
Fatigue (feeling of tiredness)
Rash
Rotator cuff syndrome (a spectrum of conditions affecting the rotator cuff tendons of the shoulder)
Vomiting
Abasia (inability to walk)
Balance disorder
Blood cholesterol increased

male:

Rash
Blister (small pocket of fluid within the upper layers of the skin caused by forceful rubbing (friction), burning, freezing, chemical exposure)
Pruritus (severe itching of the skin)
Swelling
Tremor (trembling or shaking movements in one or more parts of your body)
Weight decreased
Cough
Dysgeusia (disorder of the sense of taste)
Dyspnoea (difficult or laboured respiration)
Emotional distress

What are the common drug interactions of Cinnamon and Tea, 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:

Blister (small pocket of fluid within the upper layers of the skin caused by forceful rubbing (friction), burning, freezing, chemical exposure)
Diarrhoea
Nausea (feeling of having an urge to vomit)
Pruritus (severe itching of the skin)
Rash
Swelling

60+:

Fall
Rotator cuff syndrome (a spectrum of conditions affecting the rotator cuff tendons of the shoulder)
Blood sodium decreased
Chest pain
Diarrhoea
Dyspepsia (indigestion)
Faeces discoloured
Fatigue (feeling of tiredness)
Fluid intake reduced
Haemoglobin decreased

What are the existing conditions these people have? *

Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 9 people, 33.33%
Multiple Myeloma (cancer of the plasma cells): 8 people, 29.63%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 5 people, 18.52%
Type 2 Diabetes: 3 people, 11.11%
Pain: 2 people, 7.41%
Immunodeficiency Common Variable: 2 people, 7.41%
High Blood Pressure: 2 people, 7.41%
Hiatal Hernia (hernia resulting from the protrusion of part of the stomach through the diaphragm): 2 people, 7.41%

* Approximation only. Some reports may have incomplete information.

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