Qwo and Tenderness - a phase IV clinical study of FDA data

Summary:

Tenderness is reported as a side effect among people who take Qwo (collagenase clostridium histolyticum-aaes), especially for people who are female, 30-39 old, and have Cellulite.

The phase IV clinical study analyzes which people have Tenderness when taking Qwo. It is created by eHealthMe based on reports of 1,288 people who have side effects when taking Qwo from the FDA, and is updated regularly.

What is Qwo?

Qwo has active ingredients of collagenase clostridium histolyticum-aaes. eHealthMe is studying from 1,288 Qwo users. Check the latest studies of Qwo.

What is Tenderness?

Tenderness (pain or discomfort when an affected area is touched) is found to be associated with 1,050 drugs and 1,014 conditions by eHealthMe. Check the latest studies of Tenderness.

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 Sep, 02, 2026

1,288 people reported to have side effects when taking Qwo.
Among them, 11 people (0.85%) have Tenderness.

Among these 11 people:

What is the gender of people who have Tenderness when taking Qwo? *

female: 100 %
male: 0.0 %

What is the age of people who have Tenderness when taking Qwo? *

What are other side effects people have besides Tenderness? *

Head Injury: 4 people, 36.36%
Skin Hyperpigmentation (disorders affect the colour of your skin): 3 people, 27.27%
Nodule (a growth of abnormal tissue): 3 people, 27.27%
Drug Ineffective: 3 people, 27.27%
Injection Site Nodule (small swelling or aggregation of cells in the body, esp. an abnormal one at injection site): 2 people, 18.18%
Injection Site Bruising: 2 people, 18.18%
Skin Discoloration: 2 people, 18.18%
Capillary Fragility (lack in resistance of capillary): 1 person, 9.09%
Cellulite (fat deposition under the skin of thigh): 1 person, 9.09%
Chest Pain: 1 person, 9.09%

What are the existing conditions these people have? *

Cellulite (fat deposition under the skin of thigh): 9 people, 81.82%
Peau D'orange (orange peel skin): 2 people, 18.18%

* Approximation only. Some reports may have incomplete information.

Do you take Qwo and have Tenderness?

- Check whether Tenderness is associated with a drug or a condition
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

Effectiveness of, long term effects of, and alternative drugs to Qwo:

Qwo (1,288 reports)

Tenderness treatments and more:

Tenderness (13,319 reports)

How severe was Tenderness and when was it recovered:

Tenderness in Qwo

Expand to all the drugs that have ingredients of collagenase clostridium histolyticum-aaes:

Tenderness and drugs with ingredients of collagenase clostridium histolyticum-aaes

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 Qwo:

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 the drugs that are associated with Tenderness:

Tenderness (1,050 drugs)

Browse all the conditions that are associated with Tenderness:

Tenderness (1,014 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on collagenase clostridium histolyticum-aaes (the active ingredients of Qwo) and Qwo (the brand name). 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.