Effexor xr and Perjeta drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Effexor xr (venlafaxine hydrochloride) and Perjeta (pertuzumab). Common drug interactions include diarrhoea among females.

The phase IV clinical study analyzes what interactions people have when they take Effexor xr and Perjeta. It is created by eHealthMe based on reports of 11 people who take the same drugs from the FDA, and is updated regularly.

What is Effexor xr?

Effexor xr has active ingredients of venlafaxine hydrochloride. It is often used in depression. eHealthMe is studying from 35,233 Effexor xr users. Check the latest studies of Effexor xr.

What is Perjeta?

Perjeta has active ingredients of pertuzumab. eHealthMe is studying from 13,388 Perjeta users. Check the latest studies of Perjeta.



On Jul, 10, 2026

11 people who take Effexor xr and Perjeta together, and have interactions are studied.

Effexor xr and Perjeta drug interactions.

What are the common drug interactions of Effexor Xr and Perjeta, by gender? *:

female:

  1. Diarrhoea
  2. Fatigue (feeling of tiredness)
  3. Fungal infection
  4. Gingival swelling (gums swelling)
  5. Hypertension (high blood pressure)
  6. Hypoaesthesia (reduced sense of touch or sensation)
  7. Muscle spasms (muscle contraction)
  8. Myalgia (muscle pain)
  9. Pain in extremity
  10. Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect)

male:

n/a

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

  1. Alopecia (absence of hair from areas of the body)

40-49:

n/a

50-59:

  1. Alopecia (absence of hair from areas of the body)
  2. Hair colour changes
  3. Hair disorder

60+:

  1. Bone pain
  2. Diarrhoea
  3. Gingival swelling (gums swelling)
  4. Headache (pain in head)
  5. Hypertension (high blood pressure)
  6. Hypoaesthesia (reduced sense of touch or sensation)
  7. Muscle spasms (muscle contraction)
  8. Myalgia (muscle pain)
  9. Pain in extremity
  10. Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect)

What are the existing conditions these people have? *

  1. Breast Cancer Metastatic: 5 people, 45.45%
  2. Breast Cancer: 5 people, 45.45%
  3. Stress And Anxiety: 1 person, 9.09%
  4. Muscle Aches (muscle pain): 1 person, 9.09%
  5. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 9.09%
  6. Cardiac Disorder: 1 person, 9.09%
  7. Breast Cancer Stage Iv: 1 person, 9.09%
  8. Breast Cancer Female: 1 person, 9.09%
  9. Arthritis (form of joint disorder that involves inflammation of one or more joints): 1 person, 9.09%

* Approximation only. Some reports may have incomplete information.

Do you take Effexor xr and Perjeta?

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Related studies:

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

Browse all drug interactions of Effexor xr and Perjeta:

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 Effexor xr:

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 Perjeta:

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 Effexor xr 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 Perjeta 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

How the study uses the data?

The study uses data from the FDA. It is based on venlafaxine hydrochloride and pertuzumab (the active ingredients of Effexor xr and Perjeta, respectively), and Effexor xr and Perjeta (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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