Principen side effects, by duration, gender and age (a phase IV clinical study of FDA data)
Summary:
Side effects are reported by people who take Principen (ampicillin/ampicillin trihydrate). Common side effects include acute myocardial infarction among females and abdominal pain among males.
The phase IV clinical study is created by eHealthMe based on 65 reports from the FDA, and is updated regularly.
What is Principen?
Principen has active ingredients of ampicillin/ampicillin trihydrate. eHealthMe is studying from 70 Principen users. Check the latest studies of Principen.
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 >>>.
65 people who take Principen and have side effects are studied.

What are the common side effects of Principen, by gender? *:
female:
- Acute myocardial infarction (acute heart attack)
- Anaemia (lack of blood)
- Anhedonia (inability to experience pleasure from activities usually found enjoyable)
- Abdominal discomfort
- Abdominal pain
- Acute sinusitis
- Alopecia (absence of hair from areas of the body)
- Aortic valve incompetence
- Chest pain
- Chickenpox (infection with varicella zoster virus)
male:
- Abdominal pain
- Arthralgia (joint pain)
- Plasma cell myeloma (cancer that begins in plasma cells)
- Pneumonia
- Arteriosclerosis coronary artery (thickening and hardening of arteries- coronary artery)
- Blood pressure abnormal
- Colitis ulcerative (inflammation of colon with ulcer)
- Asthenia (weakness)
- Bile duct stenosis (abnormal narrowing of the common bile duct)
- Dehydration (dryness resulting from the removal of water)
What are the common side effects of Principen, by age (0-1 to 60+) *:
0-1:
n/a
2-9:
n/a
10-19:
- Abdominal pain
- Arthralgia (joint pain)
- Colitis ulcerative (inflammation of colon with ulcer)
- Mouth ulceration (mouth ulcers)
- Protein urine
- Stevens-johnson syndrome (an immune-complex-mediated hypersensitivity disorder. it ranges from mild skin and mucous membrane lesions to a severe)
20-29:
- Colitis ulcerative (inflammation of colon with ulcer)
30-39:
- Chills (felling of cold)
- Epidermal necrolysis (skin condition that is usually caused by a reaction to drugs)
- Hypersensitivity
40-49:
- Drug hypersensitivity
- Anaemia (lack of blood)
- Anhedonia (inability to experience pleasure from activities usually found enjoyable)
- Chickenpox (infection with varicella zoster virus)
- Plasma cell myeloma (cancer that begins in plasma cells)
50-59:
- Arteriosclerosis coronary artery (thickening and hardening of arteries- coronary artery)
- Acute sinusitis
- Chest pain
60+:
- Anaemia (lack of blood)
- Anhedonia (inability to experience pleasure from activities usually found enjoyable)
- Blood pressure abnormal
- Abdominal discomfort
- Alopecia (absence of hair from areas of the body)
- Asthenia (weakness)
- Bile duct stenosis (abnormal narrowing of the common bile duct)
- Confusion
- Haemorrhage subepidermal (bleeding from the skin)
- Pneumonia
What are the common side effects of Principen, by the time people have been on the drug (< 1 month to 10+ years)? *:
< 1 month:
- Anhedonia (inability to experience pleasure from activities usually found enjoyable)
- Chills (felling of cold)
- Hypersensitivity
1 - 6 months:
n/a
6 - 12 months:
n/a
1 - 2 years:
n/a
2 - 5 years:
n/a
5 - 10 years:
n/a
10+ years:
n/a
not specified:
- Colitis ulcerative (inflammation of colon with ulcer)
- Abdominal discomfort
- Acute sinusitis
- Alopecia (absence of hair from areas of the body)
- Anhedonia (inability to experience pleasure from activities usually found enjoyable)
- Ankle fracture
- Aortic valve incompetence
- Asthenia (weakness)
- Bile duct stenosis (abnormal narrowing of the common bile duct)
- Chest pain
* Approximation only. Some reports may have incomplete information.
Do you take Principen?
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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.
How the study uses the data?
The study is based on ampicillin/ampicillin trihydrate (the active ingredients of Principen) and Principen (the brand name). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered.
Related studies are listed below in case you need more information:
Alternative drugs to, pros and cons of Principen:
- Principen (70 reports)
All Principen side effects 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 zWho 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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