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

Summary:

Drug interactions are reported among people who take Propecia (finasteride) and Prozac (fluoxetine hydrochloride). Common drug interactions include tremor among females and sexual dysfunction among males.

The phase IV clinical study analyzes what interactions people have when they take Propecia and Prozac. It is created by eHealthMe based on reports of 44 people who take the same drugs from the FDA, and is updated regularly.

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.

What is Prozac?

Prozac has active ingredients of fluoxetine hydrochloride. It is often used in depression. eHealthMe is studying from 82,988 Prozac users. Check the latest studies of Prozac.

On Jul, 18, 2026

44 people who take Propecia and Prozac together, and have interactions are studied.

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

female:

Tremor (trembling or shaking movements in one or more parts of your body)
General physical condition
Malignant melanoma (skin cancer rises from melancytes)
Sinusitis (inflammation of sinus)
Blindness
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)
Photophobia (extreme sensitivity to light)

male:

Sexual dysfunction (difficulty experienced by an individual or a couple during any stage of a normal sexual activity)
Erectile dysfunction
Hypertension (high blood pressure)
Dyspnoea (difficult or laboured respiration)
Emotional distress
Panic attack
Overdose
Attention deficit/hyperactivity disorder
Bipolar disorder (mood disorder)
Drug dependence

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Delusional disorder, unspecified type
Facial bones fracture (bone fracture of face)
Mental disorder (a psychological term for a mental or behavioural pattern or anomaly that causes distress or disability)
Obsessive-compulsive disorder (an anxiety disorder characterized by intrusive thoughts that produce uneasiness, apprehension, fear, or worry;)
Ejaculation disorder
Orchitis (inflammation of the testes)
Sexual dysfunction (difficulty experienced by an individual or a couple during any stage of a normal sexual activity)
Testicular disorder (disease of testes)
Testicular pain (pain in testes)

30-39:

Chromatopsia (visual defect in which colourless objects appear to be tinged with colour)
Constipation
Dizziness
Dyspnoea (difficult or laboured respiration)
Malabsorption (a state arising from abnormality in absorption of food nutrients across the gastrointestinal (gi) tract)

40-49:

Abnormal behaviour
Ageusia (loss of taste functions of the tongue)
Anosmia (partial or complete loss of the sense of smell)
Drug withdrawal syndrome (interfere with normal social, occupational, or other functioning. are not due to another medical condition, drug use, or discontinuation)
Hypotonia (low muscle tone)
Nightmare (unpleasant dream)
Panic attack
Tinnitus (a ringing in the ears)
Vision blurred
Alanine aminotransferase increased

50-59:

Breast enlargement
Breast pain
Diarrhoea
Pruritus (severe itching of the skin)
Skin exfoliation (removal of the oldest dead skin cells)

60+:

Acute respiratory failure
Anaemia macrocytic (a macrocytic class of anaemia)
Hyponatraemia (abnormally low level of sodium in the blood; associated with dehydration)
Interstitial lung disease
Lacrimation increased
Malignant melanoma (skin cancer rises from melancytes)
Malnutrition (a condition that results from eating a diet in which certain nutrients are lacking)
Nasal congestion (blockage of the nasal passages usually due to membranes lining the nose becoming swollen from inflamed blood vessels)
Photophobia (extreme sensitivity to light)
Pneumonitis (inflammation of the walls of the alveoli in the lungs)

What are the existing conditions these people have? *

Androgenetic Alopecia (common form of hair loss): 7 people, 15.91%
Stress And Anxiety: 6 people, 13.64%
Osteoporosis (bones weak and more likely to break): 4 people, 9.09%
Hypersensitivity: 4 people, 9.09%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 3 people, 6.82%
High Blood Pressure: 3 people, 6.82%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 3 people, 6.82%

* Approximation only. Some reports may have incomplete information.

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