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

Summary:

Drug interactions are reported among people who take Ritalin (methylphenidate hydrochloride) and Procardia (nifedipine). Common drug interactions include fall among females and infection among males.

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

Procardia has active ingredients of nifedipine. It is often used in high blood pressure. eHealthMe is studying from 15,151 Procardia users. Check the latest studies of Procardia.

On Jul, 19, 2026

31 people who take Ritalin and Procardia together, and have interactions are studied.

Ritalin and Procardia drug interactions.

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

female:

Fall
Diabetes mellitus (diabetes, caused by a deficiency of the pancreatic hormone insulin)
Joint injury
Rotator cuff syndrome (a spectrum of conditions affecting the rotator cuff tendons of the shoulder)
Ataxia (loss of full control of bodily movements)
Coordination abnormal (abnormal movement)
Diplopia (double vision)
Drug toxicity
Fatigue (feeling of tiredness)
Foot fracture

male:

Infection
Thrombocytopenia (decrease of platelets in blood)
Death
Disturbance in attention
Dizziness
Drug effect decreased
Dysarthria (speech disorder)
Dyspnoea (difficult or laboured respiration)
Dysuria (painful or difficult urination)
Erythema (redness of the skin)

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

0-1:

n/a

2-9:

n/a

10-19:

Diabetes mellitus (diabetes, caused by a deficiency of the pancreatic hormone insulin)
Type 2 diabetes mellitus
Obesity (having too much body fat)

20-29:

n/a

30-39:

n/a

40-49:

Aggression
Haemorrhagic stroke (stroke caused by the rupture of a blood vessel in the brain)
Chills (felling of cold)
Death
Dizziness
Dysarthria (speech disorder)
Dysuria (painful or difficult urination)
Fatigue (feeling of tiredness)
Hyperhidrosis (abnormally increased sweating)
Infection

50-59:

Fall
Joint injury
Rotator cuff syndrome (a spectrum of conditions affecting the rotator cuff tendons of the shoulder)
Grand mal convulsion (a type of generalized seizure that affects the entire brain)
Hypoglycaemia (deficiency of glucose in the bloodstream)
Back pain
Blood creatine phosphokinase increased
Cardiomegaly (increased size of heart than normal)
Cholelithiasis (the presence or formation of gallstones in the gallbladder or bile ducts)
Coronary artery atherosclerosis (life-threatening blockages in the arteries of your heart)

60+:

Fatigue (feeling of tiredness)
Infection
Red blood cell count decreased
Red cell distribution width increased
Speech disorder
Tremor (trembling or shaking movements in one or more parts of your body)
Thrombocytopenia (decrease of platelets in blood)
Abdominal discomfort
Arthralgia (joint pain)
Coma (state of unconsciousness lasting more than six hours)

What are the existing conditions these people have? *

Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 7 people, 22.58%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 5 people, 16.13%
Depression: 3 people, 9.68%
Stress And Anxiety: 2 people, 6.45%
Schizoaffective Disorder (a mental disorder characterized by disordered thought): 2 people, 6.45%
Personality Disorder: 2 people, 6.45%
Mantle Cell Lymphoma (cancer of lymphocytes, a type of white blood cell): 2 people, 6.45%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 2 people, 6.45%
Bipolar Disorder (mood disorder): 2 people, 6.45%
Agitation (state of anxiety or nervous excitement): 2 people, 6.45%

* Approximation only. Some reports may have incomplete information.

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