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

Summary:

Drug interactions are reported among people who take Propecia (finasteride) and Gabapentin (gabapentin). Common drug interactions include fall among females and fatigue among males.

The phase IV clinical study analyzes what interactions people have when they take Propecia and Gabapentin. It is created by eHealthMe based on reports of 85 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 Gabapentin?

Gabapentin has active ingredients of gabapentin. It is often used in peripheral neuropathy. eHealthMe is studying from 322,987 Gabapentin users. Check the latest studies of Gabapentin.

On Aug, 11, 2026

85 people who take Propecia and Gabapentin together, and have interactions are studied.

Propecia and Gabapentin drug interactions.

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

female:

Fall
Hallucination (an experience involving the perception of something not present)
Hallucination, auditory (perceiving sounds without auditory stimulus)
Nightmare (unpleasant dream)
Skin swelling
Syncope (loss of consciousness with an inability to maintain postural tone)

male:

Fatigue (feeling of tiredness)
Atrial fibrillation (fibrillation of the muscles of the atria of the heart)
Asthma
Benign prostatic hyperplasia (benign enlargement of the prostate)
Bronchial secretion retention
Bronchial wall thickening
Bronchiectasis (abnormal widening of the bronchi or their branches, causing a risk of infection)
Cardiac failure congestive
Cough
Diastolic dysfunction

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

0-1:

n/a

2-9:

n/a

10-19:

Tinnitus (a ringing in the ears)
Vitamin d decreased
Laryngitis (inflammation of the larynx)
Abdominal pain
Abnormal loss of weight
Aggression
Alcohol intolerance
Alpha 2 globulin decreased
Altered state of consciousness (altered state of mind)
Anal inflammation

20-29:

n/a

30-39:

Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Ankle fracture
Anxiety
Arthralgia (joint pain)
Back pain
Bone density decreased
Bone disorder
Cerebrovascular accident (sudden death of some brain cells due to lack of oxygen when the blood flow to the brain is impaired by blockage or rupture)
Emotional distress
Erectile dysfunction

40-49:

Disseminated intravascular coagulation (systemic activation of blood coagulation)
Eye pain
Gastritis (inflammation of stomach)
Loss of libido (loss of sexual urge)
Subarachnoid haemorrhage (blood leaks into the space between two membranes that surround the brain)
Urinary tract infection

50-59:

Abnormal dreams
Air embolism
Respiratory failure (inadequate gas exchange by the respiratory system)
Umbilical hernia (an outward bulging (protrusion) of the abdominal lining or part of the abdominal organ(s) through the area around the belly button)
Weight decreased

60+:

Dizziness
Hypoacusis (loss of hearing)
Cardiac failure congestive
Cough
Depression
Diastolic dysfunction
Dyspnoea (difficult or laboured respiration)
Fatigue (feeling of tiredness)
Gastrooesophageal reflux disease (stomach contents (food or liquid) leak backwards from the stomach into the oesophagus)
Gout (uric acid crystals building up in the body)

What are the existing conditions these people have? *

Osteoporosis (bones weak and more likely to break): 12 people, 14.12%
High Blood Pressure: 11 people, 12.94%
Gout (uric acid crystals building up in the body): 11 people, 12.94%
Asthma: 11 people, 12.94%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 10 people, 11.76%

* Approximation only. Some reports may have incomplete information.

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