2026-07-22
Unjuyeok Dermatology: Mounjaro Reviews and Q&A, Directly from the Director
Dr. Kim Da-jung, director of Cordia Clinic, provides an in-depth look at Mounjaro, covering common questions about its mechanism, weight loss effects, onset of action, differences from Wegovy, potential side effects, and contraindications.
Unjuyeok Dermatology: Mounjaro Reviews and Q&A, Directly from the Director
Hello.
I am Kim Da-jung, the representative director of Cordia Clinic.
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Have you ever met someone after a long time and found your gaze fixed on their changed appearance? A refined jawline, clothes fitting much better, an overall lighter feeling.
Questions that used to be ‘Did you start exercising?’ or ‘Did you change your diet?’ have changed a bit these days.
‘Are you perhaps taking Mounjaro?’
This name is really coming up often these days.
Inquiries about Mounjaro have significantly increased at our Unjuyeok dermatology clinic as well.
So, I've selected only the questions most frequently asked in the consultation room and organized them one by one.
If you read along for just 3 minutes, most of your curiosities will be resolved.
<Treatment Philosophy>
Q1. Mounjaro? What exactly is this injection?
It is an injectable drug with the active ingredient tirzepatide, originally developed as a prescription medication for the treatment of type 2 diabetes.
Its characteristic feature is that it acts simultaneously on two hormone receptors (GLP-1, GIP) in our body, which are involved in appetite and blood sugar control.
Therefore, whether it is prescribed depends on an individual's health status, and must be decided after sufficient consultation with medical professionals.
Q2. Does it actually change body weight?
This is the most frequently asked question.
In a phase 3 clinical trial (NEJM, 2022), significant weight loss was reported depending on the dose when administered for 72 weeks.
However, there's an important caveat to add here.
This is the average for clinical trial participants.
Results can vary depending on an individual's metabolism, eating habits, activity level, and underlying conditions.
This is why we need to consider ‘how it will react in my body’ rather than just assuming ‘the average is this much, so it will be the same for me.’
Q3. When do the effects start to be felt?
In the aforementioned study, initial responses were observed within 8 weeks of administration.
However, this is also just an average.
Some people experience rapid responses, while others only feel changes after several months.
Therefore, instead of judging results hastily, it's necessary to have the patience to observe the progress with your medical team.
Q4. How is it different from Wegovy?
Both drugs can be considered in the same class in that they utilize hormones involved in appetite and blood sugar control.
However, their ingredients and mechanisms of action differ.
Mounjaro acts on both GLP-1 and GIP receptors, while Wegovy acts only on GLP-1.
It is known that there can be differences in the metabolic impact and response depending on whether there is one or two pathways of action.
Q5. I heard the side effects are severe, is that true?
The most commonly reported reactions are gastrointestinal issues.
These include nausea, vomiting, diarrhea, and indigestion.
They tend to be more prominent during the initial few weeks when the dosage is gradually increased.
Most of these symptoms subside over time, but if they are unbearable, you must consult with your prescribing medical professional.
Self-adjusting the dosage or arbitrarily stopping the medication is truly dangerous.
This is also why our Unjuyeok dermatology clinic pays particular attention to monitoring side effects during the initial 2-3 weeks.
Q6. Are there people who should not take it?
Yes, there are.
Individuals with a personal or family history of medullary thyroid carcinoma, or those diagnosed with Multiple Endocrine Neoplasia type 2, are excluded from treatment.
If you are pregnant, have a history of pancreatitis, or have severe gastrointestinal disease, you must also inform your doctor before prescription.
When consulting at our Unjuyeok dermatology clinic, please share all information about any medications you are currently taking, supplements, and your past medical history without omitting anything.
Even a seemingly minor piece of information can change the entire course of treatment.
As interest in Mounjaro grows, so do misunderstandings.
So, do not search alone, judge alone, or decide alone.
For any medication, the answer to whether it is the right choice for you ultimately comes through sufficient dialogue and consultation with medical professionals.
If you have any questions, feel free to contact our Unjuyeok dermatology clinic.
I will personally address and answer each comment or 1:1 inquiry you leave.
This has been Kim Da-jung, representative director of Cordia Clinic.
Thank you.
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Cordia Clinic operates on a 100% reservation basis to provide sufficient consultation and customized treatment for each individual. To ensure quality of care and a private treatment environment, we accept a limited number of reservations, so please understand in advance that it may be difficult to book an appointment on your desired date. We will repay you with accurate diagnosis and dedicated treatment. Thank you. |
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Frequently Asked Questions
What kind of injection is Mounjaro?
Mounjaro is an injectable drug with the active ingredient tirzepatide, originally developed as a prescription medication for the treatment of type 2 diabetes. It is characterized by acting simultaneously on two hormone receptors (GLP-1 and GIP) in our body, which are involved in appetite and blood sugar control.
Does Mounjaro injection actually change body weight?
Yes, according to clinical trial results, significant weight loss has been reported with Mounjaro administration, depending on the dosage. However, these are average results from clinical trial participants, and individual results may vary depending on metabolism, eating habits, activity level, and underlying conditions.
When do the effects of Mounjaro injection start to be felt?
In clinical trials, initial responses were observed within 8 weeks of administration. However, this is an average result, and some individuals may experience rapid responses, while others may only feel changes after several months. It is important to observe the progress with your medical team rather than judging hastily.
What is the difference between Mounjaro and Wegovy?
Both Mounjaro and Wegovy utilize hormones that regulate appetite and blood sugar, but their ingredients and mechanisms of action differ. Mounjaro acts on both GLP-1 and GIP receptors, whereas Wegovy acts only on GLP-1, which may result in differences in their metabolic effects.
Are the side effects of Mounjaro injection severe?
The most commonly reported side effects are gastrointestinal reactions such as nausea, vomiting, diarrhea, and indigestion. These are particularly prominent during the initial few weeks when the dosage is increased. Most symptoms subside over time, but if they are severe, you must consult with your prescribing medical professional.
Are there people who should not take Mounjaro injection?
Yes, there are. Individuals with a personal or family history of medullary thyroid carcinoma, or those diagnosed with Multiple Endocrine Neoplasia type 2, are excluded from treatment. If you are pregnant, have a history of pancreatitis, or have severe gastrointestinal disease, you must also inform your medical professional before prescription.