Prevacid and Actifed drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Prevacid (lansoprazole) and Actifed (pseudoephedrine hydrochloride; triprolidine hydrochloride). Common drug interactions include pain among females and myocardial ischaemia among males.

The phase IV clinical study analyzes what interactions people have when they take Prevacid and Actifed. It is created by eHealthMe based on reports of 77 people who take the same drugs from the FDA, and is updated regularly.

What is Prevacid?

Prevacid has active ingredients of lansoprazole. It is often used in gastroesophageal reflux disease. eHealthMe is studying from 130,714 Prevacid users. Check the latest studies of Prevacid.

What is Actifed?

Actifed has active ingredients of pseudoephedrine hydrochloride; triprolidine hydrochloride. It is often used in allergies. eHealthMe is studying from 1,091 Actifed users. Check the latest studies of Actifed.



On Jul, 15, 2026

77 people who take Prevacid and Actifed together, and have interactions are studied.

Prevacid and Actifed drug interactions.

What are the common drug interactions of Prevacid and Actifed, by gender? *:

female:

  1. Pain
  2. Abdominal discomfort
  3. Back pain
  4. Hypoaesthesia (reduced sense of touch or sensation)
  5. Abdominal pain
  6. Anaphylactic reaction (serious allergic reaction)
  7. Neck pain
  8. Erythema (redness of the skin)
  9. Myalgia (muscle pain)
  10. Sjogren's syndrome (a disease that causes dryness in the mouth and eyes)

male:

  1. Myocardial ischaemia (the blood flow through one or more of the blood vessels that lead to heart (coronary arteries) is decreased)
  2. Abdominal pain
  3. Blood glucose increased
  4. Blood potassium increased
  5. Blood sodium decreased
  6. Blood triglycerides increased
  7. Blood urea increased
  8. Bradycardia (abnormally slow heart action)
  9. Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
  10. Bundle branch block right (absence of transmission of electric impulses from the atrioventricular (av) bundle of his to the right ventricle)

What are the common drug interactions of Prevacid and Actifed, 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. Back pain
  2. Pneumonia

40-49:

  1. Musculoskeletal stiffness (stiffness of the body's muscles, joints, tendons, ligaments and nerves)
  2. Dyspnoea (difficult or laboured respiration)
  3. Joint swelling
  4. Injury
  5. Lower respiratory tract infection
  6. Pain
  7. Sinusitis (inflammation of sinus)
  8. Maternal exposure during pregnancy (use of substance during pregnancy)
  9. Peripheral swelling
  10. Alopecia (absence of hair from areas of the body)

50-59:

  1. Blood albumin decreased
  2. Blood alkaline phosphatase nos increased
  3. Blood bilirubin increased
  4. Blood chloride decreased
  5. Blood potassium increased
  6. Blood sodium decreased
  7. Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
  8. Chronic obstructive airways disease
  9. Cirrhosis alcoholic (chronic disease of the liver marked by degeneration of cells, inflammation, and fibrous thickening of tissue caused by alcoholism)
  10. Confusion

60+:

  1. Anaphylactic reaction (serious allergic reaction)
  2. Sjogren's syndrome (a disease that causes dryness in the mouth and eyes)
  3. Constipation
  4. Contusion (a type of hematoma of tissue in which capillaries)
  5. Diarrhoea
  6. Drug hypersensitivity
  7. Dysphagia (a condition in which swallowing is difficult or painful)
  8. Dysphoria (generalized dissatisfaction with life)
  9. Dyspnoea (difficult or laboured respiration)
  10. Ear pain

What are the existing conditions these people have? *

  1. Dizziness: 42 people, 54.55%
  2. Pain: 19 people, 24.68%
  3. Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 16 people, 20.78%
  4. Stress And Anxiety: 12 people, 15.58%
  5. Ankylosing Spondylitis (type of arthritis affecting the spine): 10 people, 12.99%
  6. Psoriatic Arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 10 people, 12.99%
  7. Psoriasis (immune-mediated disease that affects the skin): 10 people, 12.99%
  8. Crohn's Disease (a condition that causes inflammation of the gastrointestinal tract): 10 people, 12.99%
  9. Fever: 8 people, 10.39%
  10. Migraine (headache): 7 people, 9.09%

* 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 Prevacid and Actifed:

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 Prevacid:

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 Actifed:

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 Prevacid 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 Actifed 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 lansoprazole and pseudoephedrine hydrochloride; triprolidine hydrochloride (the active ingredients of Prevacid and Actifed, respectively), and Prevacid and Actifed (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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