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

Summary:

Drug interactions are reported among people who take Ritalin (methylphenidate hydrochloride) and Cyclophosphamide (cyclophosphamide). Common drug interactions include nausea among females and encephalopathy among males.

The phase IV clinical study analyzes what interactions people have when they take Ritalin and Cyclophosphamide. It is created by eHealthMe based on reports of 48 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 Cyclophosphamide?

Cyclophosphamide has active ingredients of cyclophosphamide. It is often used in multiple myeloma. eHealthMe is studying from 185,240 Cyclophosphamide users. Check the latest studies of Cyclophosphamide.

On Aug, 03, 2026

48 people who take Ritalin and Cyclophosphamide together, and have interactions are studied.

Ritalin and Cyclophosphamide drug interactions.

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

female:

Nausea (feeling of having an urge to vomit)
Diverticulum (out pouching of a hollow (or a fluid-filled) structure in the body)
Gastrointestinal ulcer
Urinary tract infection
Febrile neutropenia (fever with reduced white blood cells)
Neutropenia (an abnormally low number of neutrophils)
Rectal fissure (painful condition in which a cut or tear occurs in the anus)
Anxiety
Breast cancer
Hospitalisation

male:

Encephalopathy (functioning of the brain is affected by some agent or condition)
Dyspnoea (difficult or laboured respiration)
Thermal burn (burn by heat)
Aphonia (inability to produce voice)
Escherichia urinary tract infection (urinary tract infection by escherichia coli)
Optic neuropathy (optic nerve damage)
Oxygen saturation decreased
Radiation retinopathy (eye damage due to radiation)
Staphylococcal abscess (pus formation due to staphylococcal bacteria)
Aseptic necrosis bone

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Cardiac failure
Cardiac failure acute

30-39:

Febrile neutropenia (fever with reduced white blood cells)
Nausea (feeling of having an urge to vomit)
Neutropenia (an abnormally low number of neutrophils)
Rectal fissure (painful condition in which a cut or tear occurs in the anus)
Breast cancer metastatic
Cellulitis (infection under the skin)
Diarrhoea
Proctalgia (pain in the rectum)
Pulmonary embolism (blockage of the main artery of the lung)
Rectal abscess (pus in rectum)

40-49:

n/a

50-59:

Encephalopathy (functioning of the brain is affected by some agent or condition)
Anxiety
Breast cancer
Cardiac arrest
Hospitalisation
Hypokalaemia (low potassium)
Muscle spasms (muscle contraction)
Nausea (feeling of having an urge to vomit)
Panic attack
Pneumonia

60+:

B-cell type acute leukaemia (cancer of the white blood cells)
Fatigue (feeling of tiredness)
Myelodysplastic syndrome (a group of conditions that occur when the blood-forming cells in the bone marrow are damaged)
Pancytopenia (medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets)
Rib fracture
Haematocrit decreased
Haemoglobin decreased
Lymphocyte count decreased
Red blood cell count decreased
Red cell distribution width increased

What are the existing conditions these people have? *

Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 16 people, 33.33%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 15 people, 31.25%
Bone Marrow Conditioning Regimen: 5 people, 10.42%
Chronic Lymphocytic Leukaemia (cancer in which the bone marrow makes too many lymphocytes (a type of white blood cell)): 4 people, 8.33%
Breast Cancer: 4 people, 8.33%
Ovarian Cancer (cancer of ovary): 3 people, 6.25%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 3 people, 6.25%
Mantle Cell Lymphoma (cancer of lymphocytes, a type of white blood cell): 3 people, 6.25%

* Approximation only. Some reports may have incomplete information.

Do you take Ritalin and Cyclophosphamide?

- Personalize this study to your gender, age, symptoms and drugs
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously