Ritalin and Proscar drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Ritalin (methylphenidate hydrochloride) and Proscar (finasteride). Common drug interactions include anaemia among females and chronic kidney disease among males.

The phase IV clinical study analyzes what interactions people have when they take Ritalin and Proscar. It is created by eHealthMe based on reports of 37 people who take the same drugs from the FDA, and is updated regularly.

What is Ritalin?

Ritalin has active ingredients of methylphenidate hydrochloride. It is often used in attention deficit hyperactivity disorder. eHealthMe is studying from 29,427 Ritalin users. Check the latest studies of Ritalin.

What is Proscar?

Proscar has active ingredients of finasteride. It is often used in prostate examination abnormal. eHealthMe is studying from 13,379 Proscar users. Check the latest studies of Proscar.

On Jul, 19, 2026

37 people who take Ritalin and Proscar together, and have interactions are studied.

What are the common drug interactions of Ritalin and Proscar, by gender? *:

female:

Anaemia (lack of blood)
Anxiety
Blood potassium decreased
Blood sodium decreased
Fall
Folate deficiency (lack of folic acid)
Hypertension (high blood pressure)
Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development)
Initial insomnia (feeling of inadequate or poor-quality sleep)
Orthostatic hypotension (a medical condition consisting of a sudden decrease in blood pressure when a person stands up)

male:

Chronic kidney disease
Anxiety
Insomnia (sleeplessness)
Left ventricular dysfunction
Syncope (loss of consciousness with an inability to maintain postural tone)
Drug ineffective
Headache (pain in head)
Back pain
Blood creatinine increased
Bronchitis (inflammation of the mucous membrane in the bronchial tubes)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

Rhinorrhoea (watery mucus discharge from the nose)
Seasonal allergy (allergic condition due to certain season)
Adverse reaction
Aggression
Child abuse
Homicide (human killing another human)
Insomnia (sleeplessness)
Loss of consciousness
Tremor (trembling or shaking movements in one or more parts of your body)
Fatigue (feeling of tiredness)

40-49:

Back pain
Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
Chronic kidney disease
Muscle spasms (muscle contraction)
Muscle tightness
Nasopharyngitis (inflammation of the nasopharynx)
Tremor (trembling or shaking movements in one or more parts of your body)

50-59:

Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Anxiety
Asthenia (weakness)
Chronic kidney disease
Depressed mood
Disturbance in attention
Emotional disorder
Emotional distress
Fear of disease
Gout (uric acid crystals building up in the body)

60+:

Dyspnoea (difficult or laboured respiration)
Nausea (feeling of having an urge to vomit)
Fatigue (feeling of tiredness)
Gastric haemorrhage (bleeding stomach)
Pain
Pleural effusion (water on the lungs)
Proteinuria (presence of protein in the urine)
Upper gastrointestinal haemorrhage (upper gastrointestinal bleeding)
Abdominal distension
Abdominal pain

What are the existing conditions these people have? *

Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 9 people, 24.32%
Pain: 5 people, 13.51%
Wheezing (a high-pitched whistling sound made while you breath): 4 people, 10.81%
Drowsiness: 4 people, 10.81%
Hiv Infection: 4 people, 10.81%
Depression: 3 people, 8.11%
High Blood Pressure: 3 people, 8.11%
Anaplastic Thyroid Cancer (thyroid cancer which has a very poor prognosis): 3 people, 8.11%
Stress And Anxiety: 3 people, 8.11%
Otitis (ear infection): 2 people, 5.41%

* Approximation only. Some reports may have incomplete information.

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