Vyvanse and Zenpep drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Vyvanse (lisdexamfetamine dimesylate) and Zenpep (pancrelipase (amylase;lipase;protease)). Common drug interactions include blindness among females and anxiety among males.

The phase IV clinical study analyzes what interactions people have when they take Vyvanse and Zenpep. It is created by eHealthMe based on reports of 25 people who take the same drugs from the FDA, and is updated regularly.

What is Vyvanse?

Vyvanse has active ingredients of lisdexamfetamine dimesylate. It is often used in attention deficit hyperactivity disorder. eHealthMe is studying from 35,870 Vyvanse users. Check the latest studies of Vyvanse.

What is Zenpep?

Zenpep has active ingredients of pancrelipase (amylase;lipase;protease). eHealthMe is studying from 5,529 Zenpep users. Check the latest studies of Zenpep.

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 Aug, 20, 2026

25 people who take Vyvanse and Zenpep together, and have interactions are studied.

Vyvanse and Zenpep drug interactions.

What are the common drug interactions of Vyvanse and Zenpep, by gender? *:

female:

  1. Blindness
  2. Joint swelling
  3. Rhinorrhoea (watery mucus discharge from the nose)
  4. Chest discomfort
  5. Dyspnoea (difficult or laboured respiration)

male:

  1. Anxiety
  2. Blood sodium decreased
  3. Somnolence (a state of near-sleep, a strong desire for sleep)
  4. Stress
  5. Bacterial infection
  6. Blood alkaline phosphatase increased
  7. Blood glucose decreased
  8. Blood pressure systolic increased
  9. Burning sensation
  10. Cystic fibrosis related diabetes

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

0-1:

n/a

2-9:

n/a

10-19:

  1. Sinus disorder (disease of sinus)
  2. Drug hypersensitivity
  3. Respiratory tract infection
  4. Infective pulmonary exacerbation of cystic fibrosis (severe infective lung disease with production of abnormally thick mucus)
  5. Rhinorrhoea (watery mucus discharge from the nose)

20-29:

n/a

30-39:

  1. Blood alkaline phosphatase increased
  2. Burning sensation
  3. Irritability
  4. Joint injury
  5. Limb injury
  6. Road traffic accident

40-49:

  1. Blindness
  2. Joint swelling

50-59:

n/a

60+:

n/a

What are the existing conditions these people have? *

  1. Cystic Fibrosis (disease of the secretary glands): 12 people, 48.00%
  2. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 10 people, 40.00%
  3. Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 2 people, 8.00%
  4. Cystic Fibrosis Lung (fibrosis with cyst in the lung): 2 people, 8.00%

* 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 Vyvanse and Zenpep:

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 Vyvanse:

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 Zenpep:

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 Vyvanse 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 Zenpep 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 lisdexamfetamine dimesylate and pancrelipase (amylase;lipase;protease) (the active ingredients of Vyvanse and Zenpep, respectively), and Vyvanse and Zenpep (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.

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.



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