Calcium and Femhrt drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Calcium (calcium) and Femhrt (ethinyl estradiol; norethindrone acetate). Common drug interactions include headache among females.

The phase IV clinical study analyzes what interactions people have when they take Calcium and Femhrt. It is created by eHealthMe based on reports of 33 people who take the same drugs from the FDA, and is updated regularly.

What is Calcium?

Calcium has active ingredients of calcium. It is often used in osteoporosis. eHealthMe is studying from 184,201 Calcium users. Check the latest studies of Calcium.

What is Femhrt?

Femhrt has active ingredients of ethinyl estradiol; norethindrone acetate. It is often used in menopause. eHealthMe is studying from 2,025 Femhrt users. Check the latest studies of Femhrt.

On Jul, 21, 2026

33 people who take Calcium and Femhrt together, and have interactions are studied.

What are the common drug interactions of Calcium and Femhrt, by gender? *:

female:

Headache (pain in head)
Fall
Abdominal pain
Abdominal pain upper
Activities of daily living impaired
Adverse event
Anaemia (lack of blood)
Aphasia (damage to the parts of the brain that control language)
Arteriovenous malformation
Bladder infection

male:

n/a

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

0-1:

n/a

2-9:

Arthralgia (joint pain)
Muscle weakness (a lack of muscle strength)
Weakness

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

Abdominal pain
Abdominal pain upper
Blood alkaline phosphatase increased
Constipation
Diarrhoea
Disease progression
Epistaxis (bleed from the nose)
Gamma-glutamyltransferase increased
Metastatic renal cell carcinoma (spreadable kidney cell tumour)
Nasal dryness (dry nose)

50-59:

Abdominal distension
Cataract (clouding of the lens inside the eye)
Chest pain
Dental caries
Emotional disorder
Fall
Flatulence (flatus expelled through the anus)
Fracture displacement
Hospitalisation
Hypoglycaemia (deficiency of glucose in the bloodstream)

60+:

Headache (pain in head)
Malaise (a feeling of general discomfort or uneasiness)
Conjunctivitis (pink eye)
Cystitis (inflammation of the wall of the bladder)
Death
Depression
Dyspnoea (difficult or laboured respiration)
Dysstasia (difficulty in standing)
Fall
Feeling hot

What are the existing conditions these people have? *

Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 5 people, 15.15%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 4 people, 12.12%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 3 people, 9.09%
Parkinson's Disease: 2 people, 6.06%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 2 people, 6.06%
Depression: 2 people, 6.06%

* Approximation only. Some reports may have incomplete information.

Do you take Calcium and Femhrt?

- Personalize this study to your gender, age, symptoms and drugs
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously