Oyster shell and Valsartan drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Oyster shell (calcium) and Valsartan (valsartan). Common drug interactions include cervical dysplasia among females and joint swelling among males.

The phase IV clinical study analyzes what interactions people have when they take Oyster shell and Valsartan. It is created by eHealthMe based on reports of 11 people who take the same drugs from the FDA, and is updated regularly.

What is Oyster shell?

Oyster shell has active ingredients of calcium. eHealthMe is studying from 731 Oyster shell users. Check the latest studies of Oyster shell.

What is Valsartan?

Valsartan has active ingredients of valsartan. It is often used in high blood pressure. eHealthMe is studying from 63,805 Valsartan users. Check the latest studies of Valsartan.

On Jul, 20, 2026

11 people who take Oyster shell and Valsartan together, and have interactions are studied.

Oyster shell and Valsartan drug interactions.

What are the common drug interactions of Oyster Shell and Valsartan, by gender? *:

female:

Cervical dysplasia (abnormal changes in the cells on the surface of the cervix)
Cervical polyp (tumour on the surface of the cervical canal)
Dizziness
Pruritus (severe itching of the skin)
Rash
Staphylococcal skin infection (skin infection by an infection with staphylococcus bacteria)
Feeling cold
Nausea (feeling of having an urge to vomit)
Cervix carcinoma (cancer of cervix)
Chronic kidney disease

male:

Joint swelling
Pulmonary oedema (fluid accumulation in the lungs)
Fall
Hot flush (sudden feelings of heat)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

Cervical dysplasia (abnormal changes in the cells on the surface of the cervix)
Cervical polyp (tumour on the surface of the cervical canal)

40-49:

n/a

50-59:

n/a

60+:

Feeling cold
Nausea (feeling of having an urge to vomit)
Cervix carcinoma (cancer of cervix)
Chronic kidney disease
Respiratory failure (inadequate gas exchange by the respiratory system)
Hot flush (sudden feelings of heat)
Pruritus (severe itching of the skin)
Rash

What are the existing conditions these people have? *

Neoplasm Malignant (cancer tumour): 4 people, 36.36%
Muscle Spasms (muscle contraction): 2 people, 18.18%
Itching: 2 people, 18.18%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 2 people, 18.18%
High Blood Cholesterol: 2 people, 18.18%
Herpes Virus Infection: 1 person, 9.09%
Fluid Retention (an abnormal accumulation of fluid in the blood): 1 person, 9.09%
Fungal Infection: 1 person, 9.09%
Gastric Ulcer (stomach ulcer): 1 person, 9.09%
Generalized Anxiety Disorder (excessive, uncontrollable, unexplained and often irrational worry): 1 person, 9.09%

* Approximation only. Some reports may have incomplete information.

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