Cathflo activase and Keppra drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Cathflo activase (alteplase) and Keppra (levetiracetam). Common drug interactions include nausea among females and cytokine release syndrome among males.

The phase IV clinical study analyzes what interactions people have when they take Cathflo activase and Keppra. It is created by eHealthMe based on reports of 42 people who take the same drugs from the FDA, and is updated regularly.

What is Cathflo activase?

Cathflo activase has active ingredients of alteplase. eHealthMe is studying from 1,469 Cathflo activase users. Check the latest studies of Cathflo activase.

What is Keppra?

Keppra has active ingredients of levetiracetam. It is often used in epilepsy. eHealthMe is studying from 73,504 Keppra users. Check the latest studies of Keppra.



On Jul, 18, 2026

42 people who take Cathflo activase and Keppra together, and have interactions are studied.

Cathflo activase and Keppra drug interactions.

What are the common drug interactions of Cathflo Activase and Keppra, by gender? *:

female:

  1. Nausea (feeling of having an urge to vomit)
  2. Fatigue (feeling of tiredness)
  3. Pyrexia (fever)
  4. Blood pressure fluctuation
  5. Fall
  6. Infusion related reaction
  7. Vomiting
  8. Catheter site infection (infection at the site of insertion)
  9. Chest discomfort
  10. Chills (felling of cold)

male:

  1. Cytokine release syndrome (immediate complication occurring with the use of anti-t cell antibody infusions)
  2. Pyrexia (fever)
  3. Headache (pain in head)
  4. Neurotoxicity (when the exposure to natural or artificial toxic substances, which are called neurotoxins, alters the normal activity of the nervous system)
  5. Hypoxia (low oxygen in tissues)
  6. Coagulopathy (blood's ability to clot is impaired)
  7. Pneumonia
  8. Atelectasis (partial or complete collapse of the lung)
  9. Diarrhoea
  10. Malignant neoplasm progression (cancer tumour came back)

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

0-1:

  1. Abdominal infection
  2. Activated partial thromboplastin time prolonged
  3. Alanine aminotransferase increased
  4. Ammonia decreased
  5. Anaemia (lack of blood)
  6. Anion gap increased
  7. Aspartate aminotransferase increased
  8. Blast cell count increased
  9. Blood albumin decreased
  10. Blood calcium decreased

2-9:

  1. Malaise (a feeling of general discomfort or uneasiness)
  2. Nausea (feeling of having an urge to vomit)
  3. Neutropenia (an abnormally low number of neutrophils)
  4. Platelet count decreased
  5. Pyrexia (fever)
  6. Red blood cell count decreased
  7. White blood cell count decreased
  8. Neutrophil count decreased (less than normal number of neutrophil a type of blood cell)
  9. Escherichia infection (bacterial infection by escherichia coli)
  10. Hypogammaglobulinaemia (an abnormally low concentration of gamma globulin in the blood and increased risk of infection)

10-19:

  1. Pyrexia (fever)
  2. Cytokine release syndrome (immediate complication occurring with the use of anti-t cell antibody infusions)
  3. Hypoxia (low oxygen in tissues)
  4. Neurotoxicity (when the exposure to natural or artificial toxic substances, which are called neurotoxins, alters the normal activity of the nervous system)
  5. Pericardial effusion (fluid around the heart)
  6. Tachycardia (a heart rate that exceeds the range of 100 beats/min)
  7. Acute lymphocytic leukaemia (cancer of the white blood cells)
  8. Agitation (state of anxiety or nervous excitement)
  9. Ammonia increased
  10. Apnoea (suspension of external breathing)

20-29:

n/a

30-39:

  1. Blood pressure fluctuation
  2. Fall
  3. Headache (pain in head)
  4. Infusion related reaction
  5. Nausea (feeling of having an urge to vomit)
  6. Vomiting
  7. Catheter site infection (infection at the site of insertion)
  8. Chest discomfort
  9. Chills (felling of cold)
  10. Erythema (redness of the skin)

40-49:

n/a

50-59:

  1. Parkinsonism (degenerative disorder of the central nervous system characterized by tremor and impaired muscular coordination)

60+:

  1. Cytokine release syndrome (immediate complication occurring with the use of anti-t cell antibody infusions)
  2. Pyrexia (fever)
  3. Chest pain
  4. Electrocardiogram qt prolonged
  5. Fatigue (feeling of tiredness)
  6. Febrile neutropenia (fever with reduced white blood cells)
  7. Gait disturbance
  8. Headache (pain in head)
  9. Hypomagnesaemia (electrolyte disturbance in which there is an abnormally low level of magnesium in the blood)
  10. Ischaemia (insufficient supply of blood to an organ, usually due to a blocked artery)

What are the existing conditions these people have? *

  1. Nausea (feeling of having an urge to vomit): 9 people, 21.43%
  2. Pain: 8 people, 19.05%
  3. Non-Hodgkin's Lymphoma (malignant (cancer) cells form in the lymph system): 8 people, 19.05%
  4. Indigestion: 8 people, 19.05%
  5. Constipation: 8 people, 19.05%
  6. Acute Lymphocytic Leukemia (All) (cancer of the white blood cells characterized by excess lymphoblasts): 8 people, 19.05%
  7. Fever: 7 people, 16.67%
  8. Polyneuropathy (neurological disorder that occurs when many peripheral nerves throughout the body malfunction simultaneously): 6 people, 14.29%
  9. Blood Culture Positive: 5 people, 11.90%
  10. Agranulocytosis (a deficiency of granulocytes in the blood, causing increased vulnerability to infection): 5 people, 11.90%

* Approximation only. Some reports may have incomplete information.

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Related studies:

Effectiveness of, side effects of, and alternative drugs to the 2 drugs:

Browse all drug interactions of Cathflo activase and Keppra:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Sub-studies by gender and age:

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Browse all side effects of Cathflo activase:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all side effects of Keppra:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all interactions between Cathflo activase and drugs from A to Z:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all interactions between Keppra and drugs from A to Z:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Related publications that referenced our studies


How the study uses the data?

The study uses data from the FDA. It is based on alteplase and levetiracetam (the active ingredients of Cathflo activase and Keppra, respectively), and Cathflo activase and Keppra (the brand names). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered. Dosage of drugs is not considered in the study.

How to use the study?

DO NOT STOP MEDICATIONS without first consulting your doctor. If there are any serious or long term adverse effects discovered in the study, discuss the study with your doctor to ensure that proper medication management will be in place if applicable.

Who is eHealthMe?

With medical big data and proven AI/ML algorithms, eHealthMe provides a platform for everyone to run phase IV clinical trials. We study millions of patients and 5,000 more each day. Results of our real-world drug study have been referenced on 800+ peer-reviewed medical publications, including The Lancet, Mayo Clinic Proceedings, and Nature. Our analysis results are available to researchers, health care professionals, patients (testimonials), and software developers (open API).

WARNING, DISCLAIMER, USE FOR PUBLICATION

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on eHealthMe.com is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only. Our phase IV clinical studies alone cannot establish cause-effect relationship. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

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