Finasteride and Chantix drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Finasteride (finasteride) and Chantix (varenicline tartrate). Common drug interactions include disorientation among females and pain in extremity among males.

The phase IV clinical study analyzes what interactions people have when they take Finasteride and Chantix. 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 Finasteride?

Finasteride has active ingredients of finasteride. It is often used in prostate examination abnormal. eHealthMe is studying from 44,177 Finasteride users. Check the latest studies of Finasteride.

What is Chantix?

Chantix has active ingredients of varenicline tartrate. It is often used in quit smoking. eHealthMe is studying from 89,889 Chantix users. Check the latest studies of Chantix.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Sep, 01, 2026

85 people who take Finasteride and Chantix together, and have interactions are studied.

Finasteride and Chantix drug interactions.

What are the common drug interactions of Finasteride and Chantix, by gender? *:

female:

Disorientation (disability in which the senses of time, direction, and recognition of people and places)
Dizziness
Drug intolerance (drug sensitivity)
Ejaculation disorder
Ejaculation failure
Erectile dysfunction
Eructation (release of gas from the digestive tract)
Gynaecomastia (enlargement of the gland tissue of the male breast)
Hyperhidrosis (abnormally increased sweating)
Hyperventilation

male:

Pain in extremity
Anxiety
Chronic kidney disease
Bone density decreased
Renal failure (kidney dysfunction)
Suicidal ideation
Nausea (feeling of having an urge to vomit)
Rash
Osteopenia (a condition where bone mineral density is lower than normal)
Osteoporosis (bones weak and more likely to break)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Dysphagia (a condition in which swallowing is difficult or painful)
Hypersensitivity
Impaired work ability
Rash
Skin necrosis (skin damage)

30-39:

Constipation
Dizziness
Dyspnoea (difficult or laboured respiration)
Malabsorption (a state arising from abnormality in absorption of food nutrients across the gastrointestinal (gi) tract)
Pain
Rash

40-49:

Libido decreased (loss of interest in sex)
Loss of libido (loss of sexual urge)
Muscle atrophy (a decrease in the mass of the muscle)
Panic attack
Paranoia (psychotic disorder characterized by delusions of persecution with or without grandeur)
Penis disorder
Peyronie's disease (bent penis)
Sexual dysfunction (difficulty experienced by an individual or a couple during any stage of a normal sexual activity)
Sexually transmitted disease
Suicidal ideation

50-59:

Chronic kidney disease
Anxiety
Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Depression
Emotional distress
Pain
Renal failure (kidney dysfunction)
Osteopenia (a condition where bone mineral density is lower than normal)
Anger
Homicidal ideation (thoughts about human killing another human)

60+:

Pain in extremity
Dysarthria (speech disorder)
Pain
Rash
Depression
Confusional state
Constipation
Renal failure (kidney dysfunction)
Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Bone density decreased

What are the existing conditions these people have? *

High Blood Cholesterol: 19 people, 22.35%
Hiv Infection: 16 people, 18.82%
High Blood Pressure: 16 people, 18.82%
Pain: 15 people, 17.65%
Depression: 13 people, 15.29%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 13 people, 15.29%
Prostatomegaly (enlargement of the prostate): 11 people, 12.94%
Stress And Anxiety: 10 people, 11.76%
Asthma: 9 people, 10.59%
Chronic Obstructive Pulmonary Disease (a progressive disease that makes it hard to breathe): 8 people, 9.41%

* Approximation only. Some reports may have incomplete information.

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