Biotin and Propecia drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Biotin (biotin) and Propecia (finasteride). Common drug interactions include hair disorder among females and palpitations among males.

The phase IV clinical study analyzes what interactions people have when they take Biotin and Propecia. It is created by eHealthMe based on reports of 31 people who take the same drugs from the FDA, and is updated regularly.

What is Biotin?

Biotin has active ingredients of biotin. It is often used in hair loss. eHealthMe is studying from 35,393 Biotin users. Check the latest studies of Biotin.

What is Propecia?

Propecia has active ingredients of finasteride. It is often used in hair loss. eHealthMe is studying from 9,757 Propecia users. Check the latest studies of Propecia.

On Jul, 19, 2026

31 people who take Biotin and Propecia together, and have interactions are studied.

What are the common drug interactions of Biotin and Propecia, by gender? *:

female:

Hair disorder
Hypertrichosis (hair growth on the body in an amount considered abnormal)
Urticaria (rash of round, red welts on the skin that itch intensely)
Constipation
Diarrhoea
Drug ineffective
Eye pain
Eyelid pain
Lacrimation increased
Nasal congestion (blockage of the nasal passages usually due to membranes lining the nose becoming swollen from inflamed blood vessels)

male:

Palpitations (feelings or sensations that your heart is pounding or racing)
Erectile dysfunction
Blindness
Blood pressure increased
Dehydration (dryness resulting from the removal of water)
Depression
Diarrhoea
Dizziness
Dry eye (lack of adequate tears)
Dry skin

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Erectile dysfunction
Injection site pain
Depression
Dizziness
Dry skin
Emotional distress
Gynaecomastia (enlargement of the gland tissue of the male breast)
Hypogonadism male (male testes produce little or no sex hormone)
Hypotonia (low muscle tone)
Loss of libido (loss of sexual urge)

30-39:

Tonsillitis (inflammation of tonsil)

40-49:

Abdominal pain upper
Blindness
Dehydration (dryness resulting from the removal of water)
Diarrhoea
Dry eye (lack of adequate tears)
Insomnia (sleeplessness)
Pain
Photopsia (presence of perceived flashes of light)
Retinal detachment (a disorder of the eye in which the retina peels away from its underlying layer of support tissue)

50-59:

Air embolism
Respiratory failure (inadequate gas exchange by the respiratory system)

60+:

Hair disorder
Hypertrichosis (hair growth on the body in an amount considered abnormal)
Overdose
Photophobia (extreme sensitivity to light)
Pruritus (severe itching of the skin)
Rhinorrhoea (watery mucus discharge from the nose)
Urticaria (rash of round, red welts on the skin that itch intensely)
Constipation
Diarrhoea
Drug ineffective

What are the existing conditions these people have? *

Hair Disorder: 3 people, 9.68%
Androgenetic Alopecia (common form of hair loss): 3 people, 9.68%
Ulcerative Colitis (inflammatory bowel disease (ibd). it causes swelling, ulcerations, and loss of function of the large intestine): 2 people, 6.45%
Skin Disorder (skin disease): 2 people, 6.45%
Rosacea (a skin condition that causes facial redness): 2 people, 6.45%

* Approximation only. Some reports may have incomplete information.

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