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

Summary:

Drug interactions are reported among people who take Omeprazole (omeprazole) and Tea (black tea). Common drug interactions include joint swelling among females and sinusitis among males.

The phase IV clinical study analyzes what interactions people have when they take Omeprazole and Tea. It is created by eHealthMe based on reports of 50 people who take the same drugs from the FDA, and is updated regularly.

What is Omeprazole?

Omeprazole has active ingredients of omeprazole. It is often used in gastroesophageal reflux disease. eHealthMe is studying from 410,631 Omeprazole users. Check the latest studies of Omeprazole.

What is Tea?

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

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 Aug, 14, 2026

50 people who take Omeprazole and Tea together, and have interactions are studied.

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

female:

Joint swelling
Muscular weakness (muscle weakness)
Musculoskeletal pain (pain affects the bones, muscles, ligaments, tendons, and nerves)
Myalgia (muscle pain)
Narcolepsy (brain's inability to regulate sleep-wake cycles normally)
Nausea (feeling of having an urge to vomit)
Onychalgia (nail biting)
Pain
Pain in extremity
Parkinson's disease

male:

Sinusitis (inflammation of sinus)
Insomnia (sleeplessness)
Disturbance in attention
Drug dependence
Drug ineffective
Dyspnoea (difficult or laboured respiration)
Fall
Formication (a sensation that exactly resembles that of small insects crawling on (or under) the skin)
Haemoglobin decreased
Haemorrhage (bleeding)

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

0-1:

n/a

2-9:

Formication (a sensation that exactly resembles that of small insects crawling on (or under) the skin)
Hyperhidrosis (abnormally increased sweating)
Pruritus (severe itching of the skin)
Rash macular (small, flat red spots)

10-19:

n/a

20-29:

n/a

30-39:

Constipation
Headache (pain in head)
Nasopharyngitis (inflammation of the nasopharynx)
Nausea (feeling of having an urge to vomit)
Pneumonia
Urinary tract infection
Vaginal haemorrhage (vaginal bleeding)

40-49:

Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
Malaise (a feeling of general discomfort or uneasiness)
Pruritus (severe itching of the skin)
Pulmonary fibrosis (formation or development of excess fibrous connective tissue (fibrosis) in the lungs)
Rash
Sinusitis (inflammation of sinus)
Thermal burn (burn by heat)
Weight increased
Dermatitis contact (skin reaction (dermatitis) resulting from exposure to allergens)
Arthropod sting (arthropod bite)

50-59:

Arthralgia (joint pain)
Abdominal pain
Drug dependence
Fatigue (feeling of tiredness)
Insomnia (sleeplessness)
Micturition urgency (urgency to pass the urine)
Musculoskeletal discomfort (discomfort in the body's muscles, joints, tendons, ligaments and nerves)
Myalgia (muscle pain)
Salivary hypersecretion (excess saliva secretion)

60+:

Diarrhoea
Asthenia (weakness)
White blood cell count decreased
Abdominal discomfort
Anaemia (lack of blood)
Anxiety
Arthralgia (joint pain)
Back pain
Blister (small pocket of fluid within the upper layers of the skin caused by forceful rubbing (friction), burning, freezing, chemical exposure)
Blood phosphorus decreased

What are the existing conditions these people have? *

Immunodeficiency Common Variable: 8 people, 16.00%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 7 people, 14.00%
Multiple Myeloma (cancer of the plasma cells): 6 people, 12.00%
Sinusitis (inflammation of sinus): 5 people, 10.00%
Itching: 5 people, 10.00%
Bronchitis (inflammation of the mucous membrane in the bronchial tubes): 5 people, 10.00%
Primary Pulmonary Hypertension (primary high blood pressure that affects the arteries in the lungs and the right side of your heart): 4 people, 8.00%
High Blood Pressure: 4 people, 8.00%
Pancreatic Carcinoma (pancreatic cancer): 3 people, 6.00%
Nausea (feeling of having an urge to vomit): 3 people, 6.00%

* Approximation only. Some reports may have incomplete information.

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